Mockman Schematic ... a better Rockman
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From: Tom B on 13 Sep 2009 21:52 If you go to Smallbear there are a few designation differences. Click Stock List Capacitors, Electrolytic ---- 5th item down Radial 16v -- Add to cart, pick 10mf and 100mf. They equal 10uF and 100uF in schemo. Then Capacitors - Panasonic Low V Poly for the rest. 10n = .01mf 47n = .047mf 6n8 = 6.8n = .0068mf 47p = .047n = .000047mf Cx = 470p = .47n = .00047mf and you probable want a couple extra range from 220 up towards 700. Resistors - 1% Metal Film Switches, Relays SW1 = 4th page 4th item SPDT. You will use only two pins, center and either end. Potentiometeers, Trimpots 1st page, 1st item select 500K Audio Taper ---- You will still need in / out jacks, barttery clip, housing, --and if you want a foot switch and some way to disconnect battery when you unplug. -- Tom B. "Tom B" <nottb(a)123.com> wrote in message news:h8k4tc$ced$1(a)aioe.org... > Everything you need. > > http://www.smallbearelec.com/home.html
From: Steve_Karl on 14 Sep 2009 04:01 I'm getting there and am begging to see a glimmer of understanding. Thank you! Please see below for some needed clarification.: "Tom B" <nottb(a)123.com> wrote in message news:h8k7kt$ekk$1(a)aioe.org... > If you go to Smallbear there are a few designation differences. > > Click Stock List > > Capacitors, Electrolytic > ---- 5th item down Radial 16v -- Add to cart, pick 10mf and 100mf. They equal 10uF and 100uF in schemo. > > Then Capacitors - Panasonic Low V Poly for the rest. > 10n = .01mf > 47n = .047mf > 6n8 = 6.8n = .0068mf Got all above. --------------------------------------------------- > 47p = .047n = .000047mf Does 47p = 470pf ? ( there's no option for a 47p or a .000047mf ) > Cx = 470p = .47n = .00047mf and you probable want a couple extra range from 220 up towards 700. does 470p mean 470pf ? There's a 470pf but no 470p. Not sure why I want a couple of extra ranging from 220 up towards 700. Can you explain and tell me which ones to get? > Resistors - 1% Metal Film does 10k = 1meg ? Also, top center vertical, there is one with a value of 100 ( no k or m ) What is that? --------------------------------------------------- Got all below! > Switches, Relays > SW1 = 4th page 4th item SPDT. You will use only two pins, center and either end. > > Potentiometeers, Trimpots > 1st page, 1st item select 500K Audio Taper > > > ---- > > You will still need in / out jacks, barttery clip, housing, --and if you want a foot switch and some way to disconnect battery > when you unplug. > > > > > > -- > Tom B. > > "Tom B" <nottb(a)123.com> wrote in message news:h8k4tc$ced$1(a)aioe.org... >> Everything you need. >> >> http://www.smallbearelec.com/home.html >
From: Steve_Karl on 14 Sep 2009 06:44 Tom, For the OpAmps I'm thinking of trying both of their favorites, but the first one has 2 versions. Which version of this Op Amp should I get? http://www.smallbearelec.com/Detail.bok?no=213&sfs=b8d6fdfb or http://www.smallbearelec.com/Detail.bok?no=703&sfs=b8d6fdfb I'm guessing NOT single in line linear? ------------ And since there's only one of these ( TLC2262 ) http://www.smallbearelec.com/Categories.bok?sfs=b8d6fdfb then that's obvious, TheOpAmps need a socket? Will they both fit in the same? I have no idea how to pick find the socket, so a tip there would be great. And the pc board? ( if that's what it's called ) Should it be double sided? Thank you! Steve
From: Tom B on 14 Sep 2009 09:07 SIP = Single Inline Package. It looks like an elongated chicklet with all the pins pointing down out of one edge. DIP = Dual Inline Package. Looks like a little rectangle and the pins are on two sides pointing down. For an 8 pin chip it would 4 per side. You should stick with the DIP style and an 8 pin socket. That way you can switch them out. Functionally they are identical. http://www.smallbearelec.com/Categories.bok?category=Sockets First one on that page works. 8 pin. When you look at your schematic notice the documentation says that you are using this Opamp or that OpAmp, but teh schematic shows U1a and U1b. That tells you it's a Dual chip. there are 2 OpAmps built on one chip. that's whay the pin numbers are 1-4 on U1a and 5-8 on U1b. U1 = Single Chip. U1a = 1/2 of that chip. U1b = other half of smae chip. There are also Quad OpAmps and if this circuit were to use one it would be noted as U1a, Uib, U1c, U1d and the pins would number 1-16 (4 per actual amp). This is the same in any schematic you will see. Same for tubes as well. For instance a 12ax7 is a Dual Triode and you will see it drawn on schematics as a half circle with some pins and then another half circle with the rest. One thing to note though in your IC's. Some schematics will -not- show the power pins with the understanding that they have to have a B+ and Ground. So you could see that same U1a listed as pins 1,2,3 and U1b as 5,6,7. That's still an 8 pin device. You can always look up the chip data sheet. Just Google the device name/number. On sites like DigiKey and Mouser they are often linked right on the page. A word of caution on installing them. A) They are static sensitive but B) the pin points will be a little wider than the socket holes. You need to carefully squeeze/flex them inward to insert. The pins are fat/robust near the top and fragil/thin towards the bottom. You are going to be dealing with the fragil part. It is very possible for a pin to -bend under- at teh transition point between fat/thin. It might even look like it's seated properly upon casual observation and the -fat- part could in fact make electrical contact with the socket. So take careful notice of how you install it. If you bend a pin under. Be very cafeful when you straighten it out. You don't get many hard flexes like that until it breaks off. ------------ PC board. Double Sided = No Double sided means it has copper on two sides. All you need is PerfBoard. It just has littel individual solder pads on one side. You will make your own "traces" so to speak with the components and wire. They carry that RadioShack if he doesn't have any. -- Tom B. "Steve_Karl" <nospam(a)noway.com> wrote in message news:h8l6pb$lfu$1(a)news.eternal-september.org... > Tom, > > For the OpAmps I'm thinking of trying both of their favorites, > but the first one has 2 versions. > > Which version of this Op Amp should I get? > http://www.smallbearelec.com/Detail.bok?no=213&sfs=b8d6fdfb > or > http://www.smallbearelec.com/Detail.bok?no=703&sfs=b8d6fdfb > > I'm guessing NOT single in line linear? > > ------------ > And since there's only one of these ( TLC2262 ) > http://www.smallbearelec.com/Categories.bok?sfs=b8d6fdfb > then that's obvious, > TheOpAmps need a socket? > Will they both fit in the same? I have no idea how to pick find the > socket, > so a tip there would be great. > > And the pc board? ( if that's what it's called ) > Should it be double sided? > > Thank you! > > Steve > >
From: Tom B on 14 Sep 2009 09:42
> > Does 47p = 470pf ? ( there's no option for a 47p or a .000047mf ) No. 47p = 47pf = 47PicoFarads = Pronounced "47 puff " > >> Cx = 470p = .47n = .00047mf and you probable want a couple extra range >> from 220 up towards 700. > > does 470p mean 470pf ? Yes > There's a 470pf but no 470p. Same thing Farads = f = F MicoFarads = mf = mF = uF most commonly NanoFarads = nf = nF = n PicoFarads = pf = pF = p Here's a chart http://www.justradios.com/uFnFpF.html > > Not sure why I want a couple of extra ranging from 220 up towards 700. > Can you explain and tell me which ones to get? The instruction explain that depending on which OpAmp you select, that cap may make some difference. I read it again and the schematic shows 330 to 680 which are common values. It's apparently a tweakable part based on their experience. You could socket it as well for easy swap. Get one of these ... http://www.smallbearelec.com/Detail.bok?no=101 You can break them off individually or in groups and use it for mini-sockets for caps, transistors, resistors or whatever parts in a circuit you maight want to change out for tweaking. > > >> Resistors - 1% Metal Film > > does 10k = 1meg ? No, the resistor should be straight forward. The schematic numbers should be identical to the stock list. 1 or 1R = 1 Ohm 1K = 1KiloOhm 1M = 1MegaOhm 1G = 1 GigaOhm ( you will likely on see that in a microphone ) All are on this page http://www.smallbearelec.com/Categories.bok?category=Resistors+-+1%2F4+Watt%2C+1%25+Metal+Film But divided into sectioned links. 100 is on 1st link. 10K and 22K is on 4th link. 100K is on 5th link. 1M is on 6th link 1K5 1M2 6n8 2p2 Whenever you parts listed like that. Be they resistors or capacitors, simply replace the letter with a decimal and move the letter to the far right. 68 = 68 Ohms 1K5 = 1.5K 1M2 = 1.2M = 1.2 MegaOhms 6n8 = 6.8nF 2p2 = 2.2p = 2.2pF = "2.2 puff" > Also, top center vertical, there is one with a value of 100 ( no k or m ) > What is that? 100 Ohm > > > --------------------------------------------------- > Got all below! You should probably read these pages as well. They have a lot of basics that you need to get covered or be able to reference back to. http://www.freestompboxes.org/viewforum.php?f=22&sid=4db4aca1e0ef1ff9c2c1237f9b488c0b If the link doesn't go direct, it's the section marked "Builders FAQ & How To's." |