Tube vs. Solid State Preamp
in [Design]
|
Prev: How do you call
Next: Internet via Cellular
From: krw on 6 Apr 2010 18:09 On Tue, 06 Apr 2010 10:05:44 -0700, Jim Thompson <To-Email-Use-The-Envelope-Icon(a)On-My-Web-Site.com> wrote: >On Tue, 06 Apr 2010 12:58:03 -0400, "Michael A. Terrell" ><mike.terrell(a)earthlink.net> wrote: > >> >>Jim Thompson wrote: >>> >>> On Tue, 06 Apr 2010 05:29:37 -0400, "Michael A. Terrell" >>> <mike.terrell(a)earthlink.net> wrote: >>> >>> > >>> >Jim Thompson wrote: >>> >> >>> >> On Mon, 05 Apr 2010 21:21:20 -0400, "Michael A. Terrell" >>> >> <mike.terrell(a)earthlink.net> wrote: >>> >> >>> >> > >>> >> >Jim Thompson wrote: >>> >> >> >>> >> >> On Mon, 05 Apr 2010 16:53:30 -0700, Joerg <invalid(a)invalid.invalid> >>> >> >> wrote: >>> >> >> >>> >> >> [snip] >>> >> >> > >>> >> >> >I once repaired a TV set that had motorized tuning. Amazing. >>> >> >> > >>> >> >> [snip] >>> >> >> >>> >> >> Not really amazing... I've seen quite a few ;-) >>> >> >> >>> >> >> What might really amaze you... the 1968 Philco-Ford car radio... the >>> >> >> search-tuning version... was all motor-driven inductor slugs... I >>> >> >> know, I worked on the design :-) >>> >> > >>> >> > >>> >> > Yet the Lincoln used a Delco 'Wobnderbar' radio that year. >>> >> >>> >> Cars manufacture back in those days was an interesting game. High end >>> >> cars had all the experiments... the idea being: rich folk will >>> >> tolerate field failures if you kiss up to 'em and give 'em a loaner... >>> >> no maintenance costs whatever :-) >>> >> >>> >> (Interesting aside... you should have seen the brouhaha when >>> >> wife-of-upper-Ford-management goes into a car wash in Dearborn, >>> >> "rolling door locks" went off during the roll, the hand washers >>> >> couldn't open the doors and the car behind crashed into m'lady's fancy >>> >> Lincoln "toy" :-) >>> >> >>> >> Everything innovative I ever did in automotive went into Lincoln's, >>> >> Cadillac's and Chrysler 300D's first. >>> > >>> > >>> > Did you ever see Caddilac's 'Automatic Headlight Dimmer'? ;-) >>> >>> You mean the big "tear-drop-on-its-side" thingy that sat on a stalk on >>> the dash? >>> >>> I redid the electronics for that (GM Guidelamp Division)... adding >>> various delay functions and "fast-dim" if you topped a hill into the >>> face of another car. CdS sensor. >>> >>> Scared the Paradise Valley cops by testing that in the dips of >>> McDonald drive ;-) >> >> >> Yes, that wierd sensor that looked like a prop from a 'b' Sci-fi >>movie. >> >> The only units I saw were all tube, and built in the '50s. No one >>would even attempt to repair them, so you could get them from junked >>caddys for free. I had at least one complete system, and thought it was >>funny that it had about as may parts as the AM radio, and wasted so much >>current. :( > >Does any car company offer an automatic headlight dimmer anymore? My wife's car has automatic headlights; just as dumb.
From: Joerg on 6 Apr 2010 18:18 krw(a)att.bizzzzzzzzzzzz wrote: > On Tue, 06 Apr 2010 10:05:44 -0700, Jim Thompson > <To-Email-Use-The-Envelope-Icon(a)On-My-Web-Site.com> wrote: > >> On Tue, 06 Apr 2010 12:58:03 -0400, "Michael A. Terrell" >> <mike.terrell(a)earthlink.net> wrote: >> >>> Jim Thompson wrote: >>>> On Tue, 06 Apr 2010 05:29:37 -0400, "Michael A. Terrell" >>>> <mike.terrell(a)earthlink.net> wrote: >>>> >>>>> Jim Thompson wrote: >>>>>> On Mon, 05 Apr 2010 21:21:20 -0400, "Michael A. Terrell" >>>>>> <mike.terrell(a)earthlink.net> wrote: >>>>>> >>>>>>> Jim Thompson wrote: >>>>>>>> On Mon, 05 Apr 2010 16:53:30 -0700, Joerg <invalid(a)invalid.invalid> >>>>>>>> wrote: >>>>>>>> >>>>>>>> [snip] >>>>>>>>> I once repaired a TV set that had motorized tuning. Amazing. >>>>>>>>> >>>>>>>> [snip] >>>>>>>> >>>>>>>> Not really amazing... I've seen quite a few ;-) >>>>>>>> >>>>>>>> What might really amaze you... the 1968 Philco-Ford car radio... the >>>>>>>> search-tuning version... was all motor-driven inductor slugs... I >>>>>>>> know, I worked on the design :-) >>>>>>> >>>>>>> Yet the Lincoln used a Delco 'Wobnderbar' radio that year. >>>>>> Cars manufacture back in those days was an interesting game. High end >>>>>> cars had all the experiments... the idea being: rich folk will >>>>>> tolerate field failures if you kiss up to 'em and give 'em a loaner... >>>>>> no maintenance costs whatever :-) >>>>>> >>>>>> (Interesting aside... you should have seen the brouhaha when >>>>>> wife-of-upper-Ford-management goes into a car wash in Dearborn, >>>>>> "rolling door locks" went off during the roll, the hand washers >>>>>> couldn't open the doors and the car behind crashed into m'lady's fancy >>>>>> Lincoln "toy" :-) >>>>>> >>>>>> Everything innovative I ever did in automotive went into Lincoln's, >>>>>> Cadillac's and Chrysler 300D's first. >>>>> >>>>> Did you ever see Caddilac's 'Automatic Headlight Dimmer'? ;-) >>>> You mean the big "tear-drop-on-its-side" thingy that sat on a stalk on >>>> the dash? >>>> >>>> I redid the electronics for that (GM Guidelamp Division)... adding >>>> various delay functions and "fast-dim" if you topped a hill into the >>>> face of another car. CdS sensor. >>>> >>>> Scared the Paradise Valley cops by testing that in the dips of >>>> McDonald drive ;-) >>> >>> Yes, that wierd sensor that looked like a prop from a 'b' Sci-fi >>> movie. >>> >>> The only units I saw were all tube, and built in the '50s. No one >>> would even attempt to repair them, so you could get them from junked >>> caddys for free. I had at least one complete system, and thought it was >>> funny that it had about as may parts as the AM radio, and wasted so much >>> current. :( >> Does any car company offer an automatic headlight dimmer anymore? > > My wife's car has automatic headlights; just as dumb. The real problem with many of those is that they do not turn on the rear lights. My office has a nice view and there is a road going straight up a slope in the distance. At night I can regularly see many cars with the headlights on and no rear lights. The driver doesn't notice because he sees that the headlights are on. The perfect recipe for a rear-ender. -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: Jim Thompson on 6 Apr 2010 19:00 On Tue, 06 Apr 2010 15:18:26 -0700, Joerg <invalid(a)invalid.invalid> wrote: >krw(a)att.bizzzzzzzzzzzz wrote: >> On Tue, 06 Apr 2010 10:05:44 -0700, Jim Thompson >> <To-Email-Use-The-Envelope-Icon(a)On-My-Web-Site.com> wrote: >> >>> On Tue, 06 Apr 2010 12:58:03 -0400, "Michael A. Terrell" >>> <mike.terrell(a)earthlink.net> wrote: >>> >>>> Jim Thompson wrote: >>>>> On Tue, 06 Apr 2010 05:29:37 -0400, "Michael A. Terrell" >>>>> <mike.terrell(a)earthlink.net> wrote: >>>>> >>>>>> Jim Thompson wrote: >>>>>>> On Mon, 05 Apr 2010 21:21:20 -0400, "Michael A. Terrell" >>>>>>> <mike.terrell(a)earthlink.net> wrote: >>>>>>> >>>>>>>> Jim Thompson wrote: >>>>>>>>> On Mon, 05 Apr 2010 16:53:30 -0700, Joerg <invalid(a)invalid.invalid> >>>>>>>>> wrote: >>>>>>>>> >>>>>>>>> [snip] >>>>>>>>>> I once repaired a TV set that had motorized tuning. Amazing. >>>>>>>>>> >>>>>>>>> [snip] >>>>>>>>> >>>>>>>>> Not really amazing... I've seen quite a few ;-) >>>>>>>>> >>>>>>>>> What might really amaze you... the 1968 Philco-Ford car radio... the >>>>>>>>> search-tuning version... was all motor-driven inductor slugs... I >>>>>>>>> know, I worked on the design :-) >>>>>>>> >>>>>>>> Yet the Lincoln used a Delco 'Wobnderbar' radio that year. >>>>>>> Cars manufacture back in those days was an interesting game. High end >>>>>>> cars had all the experiments... the idea being: rich folk will >>>>>>> tolerate field failures if you kiss up to 'em and give 'em a loaner... >>>>>>> no maintenance costs whatever :-) >>>>>>> >>>>>>> (Interesting aside... you should have seen the brouhaha when >>>>>>> wife-of-upper-Ford-management goes into a car wash in Dearborn, >>>>>>> "rolling door locks" went off during the roll, the hand washers >>>>>>> couldn't open the doors and the car behind crashed into m'lady's fancy >>>>>>> Lincoln "toy" :-) >>>>>>> >>>>>>> Everything innovative I ever did in automotive went into Lincoln's, >>>>>>> Cadillac's and Chrysler 300D's first. >>>>>> >>>>>> Did you ever see Caddilac's 'Automatic Headlight Dimmer'? ;-) >>>>> You mean the big "tear-drop-on-its-side" thingy that sat on a stalk on >>>>> the dash? >>>>> >>>>> I redid the electronics for that (GM Guidelamp Division)... adding >>>>> various delay functions and "fast-dim" if you topped a hill into the >>>>> face of another car. CdS sensor. >>>>> >>>>> Scared the Paradise Valley cops by testing that in the dips of >>>>> McDonald drive ;-) >>>> >>>> Yes, that wierd sensor that looked like a prop from a 'b' Sci-fi >>>> movie. >>>> >>>> The only units I saw were all tube, and built in the '50s. No one >>>> would even attempt to repair them, so you could get them from junked >>>> caddys for free. I had at least one complete system, and thought it was >>>> funny that it had about as may parts as the AM radio, and wasted so much >>>> current. :( >>> Does any car company offer an automatic headlight dimmer anymore? >> >> My wife's car has automatic headlights; just as dumb. > > >The real problem with many of those is that they do not turn on the rear >lights. My office has a nice view and there is a road going straight up >a slope in the distance. At night I can regularly see many cars with the >headlights on and no rear lights. The driver doesn't notice because he >sees that the headlights are on. The perfect recipe for a rear-ender. American-made cars? I've not seen a car like that, at least in recent years. GM used to do it to avoid a wire to the alternator regulator. Alternator output was initiated due to a slightly magnetized rotor... thus you needed a minimum load... they chose the headlights and called it a safety feature ;-) I never touch the light switch on the Q45... it does it all automagically. Annoying only in that it will turn on the lights in a drive-thru :-( ...Jim Thompson -- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | The only thing bipartisan in this country is hypocrisy
From: krw on 6 Apr 2010 19:20 On Tue, 06 Apr 2010 16:00:48 -0700, Jim Thompson <To-Email-Use-The-Envelope-Icon(a)On-My-Web-Site.com> wrote: >On Tue, 06 Apr 2010 15:18:26 -0700, Joerg <invalid(a)invalid.invalid> >wrote: > >>krw(a)att.bizzzzzzzzzzzz wrote: >>> On Tue, 06 Apr 2010 10:05:44 -0700, Jim Thompson >>> <To-Email-Use-The-Envelope-Icon(a)On-My-Web-Site.com> wrote: >>> >>>> On Tue, 06 Apr 2010 12:58:03 -0400, "Michael A. Terrell" >>>> <mike.terrell(a)earthlink.net> wrote: >>>> >>>>> Jim Thompson wrote: >>>>>> On Tue, 06 Apr 2010 05:29:37 -0400, "Michael A. Terrell" >>>>>> <mike.terrell(a)earthlink.net> wrote: >>>>>> >>>>>>> Jim Thompson wrote: >>>>>>>> On Mon, 05 Apr 2010 21:21:20 -0400, "Michael A. Terrell" >>>>>>>> <mike.terrell(a)earthlink.net> wrote: >>>>>>>> >>>>>>>>> Jim Thompson wrote: >>>>>>>>>> On Mon, 05 Apr 2010 16:53:30 -0700, Joerg <invalid(a)invalid.invalid> >>>>>>>>>> wrote: >>>>>>>>>> >>>>>>>>>> [snip] >>>>>>>>>>> I once repaired a TV set that had motorized tuning. Amazing. >>>>>>>>>>> >>>>>>>>>> [snip] >>>>>>>>>> >>>>>>>>>> Not really amazing... I've seen quite a few ;-) >>>>>>>>>> >>>>>>>>>> What might really amaze you... the 1968 Philco-Ford car radio... the >>>>>>>>>> search-tuning version... was all motor-driven inductor slugs... I >>>>>>>>>> know, I worked on the design :-) >>>>>>>>> >>>>>>>>> Yet the Lincoln used a Delco 'Wobnderbar' radio that year. >>>>>>>> Cars manufacture back in those days was an interesting game. High end >>>>>>>> cars had all the experiments... the idea being: rich folk will >>>>>>>> tolerate field failures if you kiss up to 'em and give 'em a loaner... >>>>>>>> no maintenance costs whatever :-) >>>>>>>> >>>>>>>> (Interesting aside... you should have seen the brouhaha when >>>>>>>> wife-of-upper-Ford-management goes into a car wash in Dearborn, >>>>>>>> "rolling door locks" went off during the roll, the hand washers >>>>>>>> couldn't open the doors and the car behind crashed into m'lady's fancy >>>>>>>> Lincoln "toy" :-) >>>>>>>> >>>>>>>> Everything innovative I ever did in automotive went into Lincoln's, >>>>>>>> Cadillac's and Chrysler 300D's first. >>>>>>> >>>>>>> Did you ever see Caddilac's 'Automatic Headlight Dimmer'? ;-) >>>>>> You mean the big "tear-drop-on-its-side" thingy that sat on a stalk on >>>>>> the dash? >>>>>> >>>>>> I redid the electronics for that (GM Guidelamp Division)... adding >>>>>> various delay functions and "fast-dim" if you topped a hill into the >>>>>> face of another car. CdS sensor. >>>>>> >>>>>> Scared the Paradise Valley cops by testing that in the dips of >>>>>> McDonald drive ;-) >>>>> >>>>> Yes, that wierd sensor that looked like a prop from a 'b' Sci-fi >>>>> movie. >>>>> >>>>> The only units I saw were all tube, and built in the '50s. No one >>>>> would even attempt to repair them, so you could get them from junked >>>>> caddys for free. I had at least one complete system, and thought it was >>>>> funny that it had about as may parts as the AM radio, and wasted so much >>>>> current. :( >>>> Does any car company offer an automatic headlight dimmer anymore? >>> >>> My wife's car has automatic headlights; just as dumb. >> >> >>The real problem with many of those is that they do not turn on the rear >>lights. My office has a nice view and there is a road going straight up >>a slope in the distance. At night I can regularly see many cars with the >>headlights on and no rear lights. The driver doesn't notice because he >>sees that the headlights are on. The perfect recipe for a rear-ender. > >American-made cars? I've not seen a car like that, at least in recent >years. GM used to do it to avoid a wire to the alternator regulator. >Alternator output was initiated due to a slightly magnetized rotor... >thus you needed a minimum load... they chose the headlights and called >it a safety feature ;-) > >I never touch the light switch on the Q45... it does it all >automagically. Annoying only in that it will turn on the lights in a >drive-thru :-( My wife's won't come on until it's too dark. Forget a rainy day.
From: Joerg on 6 Apr 2010 19:31
Jim Thompson wrote: > On Tue, 06 Apr 2010 15:18:26 -0700, Joerg <invalid(a)invalid.invalid> > wrote: > >> krw(a)att.bizzzzzzzzzzzz wrote: >>> On Tue, 06 Apr 2010 10:05:44 -0700, Jim Thompson >>> <To-Email-Use-The-Envelope-Icon(a)On-My-Web-Site.com> wrote: >>> >>>> On Tue, 06 Apr 2010 12:58:03 -0400, "Michael A. Terrell" >>>> <mike.terrell(a)earthlink.net> wrote: >>>> >>>>> Jim Thompson wrote: >>>>>> On Tue, 06 Apr 2010 05:29:37 -0400, "Michael A. Terrell" >>>>>> <mike.terrell(a)earthlink.net> wrote: >>>>>> >>>>>>> Jim Thompson wrote: >>>>>>>> On Mon, 05 Apr 2010 21:21:20 -0400, "Michael A. Terrell" >>>>>>>> <mike.terrell(a)earthlink.net> wrote: >>>>>>>> >>>>>>>>> Jim Thompson wrote: >>>>>>>>>> On Mon, 05 Apr 2010 16:53:30 -0700, Joerg <invalid(a)invalid.invalid> >>>>>>>>>> wrote: >>>>>>>>>> >>>>>>>>>> [snip] >>>>>>>>>>> I once repaired a TV set that had motorized tuning. Amazing. >>>>>>>>>>> >>>>>>>>>> [snip] >>>>>>>>>> >>>>>>>>>> Not really amazing... I've seen quite a few ;-) >>>>>>>>>> >>>>>>>>>> What might really amaze you... the 1968 Philco-Ford car radio... the >>>>>>>>>> search-tuning version... was all motor-driven inductor slugs... I >>>>>>>>>> know, I worked on the design :-) >>>>>>>>> Yet the Lincoln used a Delco 'Wobnderbar' radio that year. >>>>>>>> Cars manufacture back in those days was an interesting game. High end >>>>>>>> cars had all the experiments... the idea being: rich folk will >>>>>>>> tolerate field failures if you kiss up to 'em and give 'em a loaner... >>>>>>>> no maintenance costs whatever :-) >>>>>>>> >>>>>>>> (Interesting aside... you should have seen the brouhaha when >>>>>>>> wife-of-upper-Ford-management goes into a car wash in Dearborn, >>>>>>>> "rolling door locks" went off during the roll, the hand washers >>>>>>>> couldn't open the doors and the car behind crashed into m'lady's fancy >>>>>>>> Lincoln "toy" :-) >>>>>>>> >>>>>>>> Everything innovative I ever did in automotive went into Lincoln's, >>>>>>>> Cadillac's and Chrysler 300D's first. >>>>>>> Did you ever see Caddilac's 'Automatic Headlight Dimmer'? ;-) >>>>>> You mean the big "tear-drop-on-its-side" thingy that sat on a stalk on >>>>>> the dash? >>>>>> >>>>>> I redid the electronics for that (GM Guidelamp Division)... adding >>>>>> various delay functions and "fast-dim" if you topped a hill into the >>>>>> face of another car. CdS sensor. >>>>>> >>>>>> Scared the Paradise Valley cops by testing that in the dips of >>>>>> McDonald drive ;-) >>>>> Yes, that wierd sensor that looked like a prop from a 'b' Sci-fi >>>>> movie. >>>>> >>>>> The only units I saw were all tube, and built in the '50s. No one >>>>> would even attempt to repair them, so you could get them from junked >>>>> caddys for free. I had at least one complete system, and thought it was >>>>> funny that it had about as may parts as the AM radio, and wasted so much >>>>> current. :( >>>> Does any car company offer an automatic headlight dimmer anymore? >>> My wife's car has automatic headlights; just as dumb. >> >> The real problem with many of those is that they do not turn on the rear >> lights. My office has a nice view and there is a road going straight up >> a slope in the distance. At night I can regularly see many cars with the >> headlights on and no rear lights. The driver doesn't notice because he >> sees that the headlights are on. The perfect recipe for a rear-ender. > > American-made cars? I've not seen a car like that, at least in recent > years. GM used to do it to avoid a wire to the alternator regulator. > Alternator output was initiated due to a slightly magnetized rotor... > thus you needed a minimum load... they chose the headlights and called > it a safety feature ;-) > I think it's mostly US cars but sometimes it's hard to tell because of the distance. Once at a traffic light I got out and told the driver, who then turned a little knobs and, tada, tail lights came on. IIRC it was a Chrysler. It's really scary when they tow a trailer, big black boat, no tail lights. You can watch it on that hill because it's tempting to "gun it" there if you have the proper car. Kid in low-rider Honda turns onto Meder Road, floors it, enjoys the throaty exhaust, here comes that big black trailer with no lights, screeeeech ..... > I never touch the light switch on the Q45... it does it all > automagically. Annoying only in that it will turn on the lights in a > drive-thru :-( > I prefer everything to be manual. Well, maybe except for the mixture/ignition although in some areas of the world like Spain or Portugal it came in handy when we could adjust that. Maybe the quality of gasoline is better there now. -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM. |