cant be
down under there is huge marks E and B probably base and emmiter .... diode test from a multimeter doesnt measure like a triac but something like a npn but with other readings
down under there is huge marks E and B probably base and emmiter .... diode test from a multimeter doesnt measure like a triac but something like a npn but with other readings
😀 😀 Googled R0G02 and it comes up as obsolete Triac.
Try it and see.
Used to see a lot of odd parts years ago. Could the other one be a regulator perhaps.
Try it and see.
Used to see a lot of odd parts years ago. Could the other one be a regulator perhaps.
Add to that, it was in things like TV chassis's that these odd numbers cropped up, you could never find the parts listed generally. Some TV's used Triac line output stages in a commutating type arrangement -- horendous things looking back.
true
i am with you but this do not justify the existance of tv triac in a police stock room
most items that i had from there in the past where RF related
so these could be parts of power supply related items ?
i am with you but this do not justify the existance of tv triac in a police stock room
most items that i had from there in the past where RF related
so these could be parts of power supply related items ?
I know what I would do. Current limited PSU, connect it up, see what it does. Use a 1 k or something to dab the base and see what happens, does it conduct, does it latch.
Or non of the above 😉
Same for the other. If your not sure if it's a reg bring the voltage up slowly and monitor the third "connection" and see if it levels off. Just keep trying every which way about.
Or non of the above 😉
Same for the other. If your not sure if it's a reg bring the voltage up slowly and monitor the third "connection" and see if it levels off. Just keep trying every which way about.
Transistor, not a triac.
Try a search for R-Zero-G-Zero-2.
There's also R0G03, R0G04, R0G05, etc, not all TO-3 package types, these semis are from the twilight zone period.
Try a search for R-Zero-G-Zero-2.
There's also R0G03, R0G04, R0G05, etc, not all TO-3 package types, these semis are from the twilight zone period.
welcome to the wonderful world of OEM "house label" parts. you might (usually about a 50/50 chance) find a NTE or SK cross reference for it (a better chance is if you find an ECG or SK book from about 5 or 10 years after the date code on the device). there is a "shelf life" for cross referenced devices. there are many devices you can't find listings for anymore because they're obsolete for too long and are discontinued from even the cross references.
motorola did OEM parts for a lot of equipment manufacturers. usually they are a standard MOT part that has been given a "house number". MOT charges a few cents extra per device for relabeling parts like this, more if they do any selection for beta or other matching to a specification. RCA used to make oem parts too, often for their competitors in the TV market.... (think about that one for a minute...... )
motorola did OEM parts for a lot of equipment manufacturers. usually they are a standard MOT part that has been given a "house number". MOT charges a few cents extra per device for relabeling parts like this, more if they do any selection for beta or other matching to a specification. RCA used to make oem parts too, often for their competitors in the TV market.... (think about that one for a minute...... )
it seems that
that i will get quiet plenty of them ( all in original state ) do you thing worth doing something with them ....
may be a nice quasi ( but i need to have more data to preserve voltage rail levels )
that i will get quiet plenty of them ( all in original state ) do you thing worth doing something with them ....
may be a nice quasi ( but i need to have more data to preserve voltage rail levels )
by some (but few) amplifier brands cross reference lists were published in their service manuals, where the appropriate "2N" was to read behind the house label respectively fabric number (e. g. Altec or McIntosh).
Check out this threads:
http://www.diyaudio.com/forums/soli...id-state-audio-amplifier-components-want.html
http://www.diyaudio.com/forums/soli...-models-quasi-complementary-power-output.html
http://www.diyaudio.com/forums/soli...irst-complementary-ab-bipolar-amplifiers.html
this situation is still so in most cases. About the thread
http://www.diyaudio.com/forums/parts/167680-vintage-transistors.html
you will find some cover pictures of vintage data books. With help of the exactly title you can go in vintage book shops or special library in your aera for order or to borrow for copy.
I want to find such data books (or at least a cover photo) about vintage Transistors from Delco Radio (Delco GM).
Last edited:
- Status
- Not open for further replies.