I picked up a test-set at the local recycling center (tip) the other day, and the boards are full of caps marked "TRW TI-99 1% 100V" in values of 2.0, 1.0 and 0.1 and others.
These are axial, white tubular, with potted ends.
Are these PP ?.
Eric.
These are axial, white tubular, with potted ends.
Are these PP ?.
Eric.
Bargain.
Hi Nelson, thanks.
Amazing what you can get for $5.00 nowadays.
I bought two large boxes I believe were used for aircraft wiring loom testing - the front panel is covered in very usefull (to me) center off/on/mom toggle switches.
The boards are covered in those caps, green resistors marked RN55D, and old (obsolete) high quality op-amps and buffer IC's.
These machines were made by Texas Instruments, and by the look would have cost a modest house.
Looks to me like a little goldmine of very high quality parts !.
Eric.
Hi Nelson, thanks.
Amazing what you can get for $5.00 nowadays.
I bought two large boxes I believe were used for aircraft wiring loom testing - the front panel is covered in very usefull (to me) center off/on/mom toggle switches.
The boards are covered in those caps, green resistors marked RN55D, and old (obsolete) high quality op-amps and buffer IC's.
These machines were made by Texas Instruments, and by the look would have cost a modest house.
Looks to me like a little goldmine of very high quality parts !.
Eric.
More likely mylar, but TRW made good quality components.
If you've got a digital voltmeter and a DC voltage source (a 9V
battery will do), charge up one of the caps and then short
the leads together momentarily. Wait a couple of minutes
and measure the residual voltage; if it's around a tenth of a
volt or so, it's probably the Good Stuff.
If you've got a digital voltmeter and a DC voltage source (a 9V
battery will do), charge up one of the caps and then short
the leads together momentarily. Wait a couple of minutes
and measure the residual voltage; if it's around a tenth of a
volt or so, it's probably the Good Stuff.
Eric: If I am not mistaken, TRW is currently known as ASC (American Shizuki Corporation). If you contact ASC, it is possible that they may be able to tell you what your unknown film caps are.
hth, jonathan carr
hth, jonathan carr
TRW
TRW "was" one of the most venerable names in the aerospace, automotive and industrial components business. The company was recently taken over, I think by Lockheed Martin.
I should also add "snoop" since they did the electronics for a lot of intelligence satelites.
TRW "was" one of the most venerable names in the aerospace, automotive and industrial components business. The company was recently taken over, I think by Lockheed Martin.
I should also add "snoop" since they did the electronics for a lot of intelligence satelites.
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