Prev: Vertical Lines
Next: DATAMAN s4 eprom programmer , looking for GAL adaptor...
From: Grant on 23 Jun 2010 14:16
On Wed, 23 Jun 2010 11:10:17 -0500, AZ Nomad <aznomad.3(a)PremoveOBthisOX.COM> wrote:

>On Thu, 24 Jun 2010 00:30:47 +1000, Grant <omg(a)grrr.id.au> wrote:
>>On Wed, 23 Jun 2010 13:23:04 +0000 (UTC), Meat Plow <mhywatt(a)yahoo.com> wrote:
>
>>>On Wed, 23 Jun 2010 08:48:22 +0100, N_Cook ??o??:
>>>
>>>> Just curious about these - how were they used? All that is known is they
>>>> came from an audio lab.
>>>> About 200 watt, 2.8 ohm vitreous resistors. 200watt estimated, by me,
>>>> from surface area scaling of 2.5 and 6W ones, these are 210 mm long 35mm
>>>> diameter. Some sort of multiple series and parallel for 2 ohm etc or
>>>> with L and C for speaker simulation ?
>>>
>>>Most newer SS amps are rated to a minimum of 2 ohms.
>
>>And cheapie meter leads might account for the extra 0.8 Ohms?
>
>You'd need at least 90' of them (at 20 AWG)
>
>or 8' of 30AWG, but I've never heard of such slim wire
>being used for probes.

I got a cheapie with that much resistance, is why the number rang a
bell. A cheapie no name meter that measures .8 or .9 ohm for short
circuit with its skinny leads ;)

But, the OP mentioned upthread the 2.8ohm value was marked on the
resistor, the size of his resistors are similar to some 5ohm 300W
resistors I have here (Ohmite C300K5R0E).

Grant.
--
http://bugs.id.au/
First  |  Prev  | 
Pages: 1 2 3
Prev: Vertical Lines
Next: DATAMAN s4 eprom programmer , looking for GAL adaptor...