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37-116 questions
08-23-2020, 12:48 AM
Is there a service bulletin noting the circuit differences between the model that uses the 6A5G vs the 6B4. Is that model distinguish by a code number other than 121 or 122?
When my pals were reading comic books I was down in the basement in my dad's workshop. Perusing his Sam's Photofoacts Vol 1-50 admiring the old set and trying to figure out what all those squiggly meant. Circa 1966 Now I think I've got! Terry 
08-23-2020, 09:37 AM
Terry,
It says the changes are in Philco 8-3. I haven't seen anything there specifically about 37-116. People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
08-23-2020, 11:15 AM
I know we had discussed it a little ways back when you got
your set. Looked up the pin out and kinda interesting as the cathode is internally connected filament at it's mid point. I would have thought that it would have a separate pin with no relation to the filament. Does your set have have a filament balancing or hum adjusting pot? When my pals were reading comic books I was down in the basement in my dad's workshop. Perusing his Sam's Photofoacts Vol 1-50 admiring the old set and trying to figure out what all those squiggly meant. Circa 1966 Now I think I've got! Terry
08-23-2020, 12:15 PM
Terry,
Don't want to misinform you, I do not remember. There might have been no trimpots in mine. Mine is 6A5 version. Now that I think about it, probably there were no trimpots. the two spare chassis' I have are 6B4 types. Probably same as yours. People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
08-23-2020, 12:52 PM
Terry
here. https://philcoradio.com/phorum/showthrea...ght=37-116 My old thread. Look at the comment #47 by JohnR. This has both Service Bulletin # and the pot (#128) removed. I guess it is a dual pot, as both pots have the same number. Funny...in the mentioned SB #258 I found nothing about codes 125/126. People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
08-23-2020, 01:11 PM
Tnx Mike,
I thought that was the case but wanted to be sure. There's a poster on arf that was asking abt the differences. When my pals were reading comic books I was down in the basement in my dad's workshop. Perusing his Sam's Photofoacts Vol 1-50 admiring the old set and trying to figure out what all those squiggly meant. Circa 1966 Now I think I've got! Terry
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