Posts: 7,248
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City: Roslyn Pa
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
Posts: 15,444
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Joined: Oct 2011
City: Jackson, NJ
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.
Posts: 7,248
Threads: 266
Joined: Dec 2009
City: Roslyn Pa
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
Posts: 15,444
Threads: 539
Joined: Oct 2011
City: Jackson, NJ
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.
(This post was last modified: 08-23-2020, 11:46 AM by
morzh.)
Posts: 15,444
Threads: 539
Joined: Oct 2011
City: Jackson, NJ
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.
(This post was last modified: 08-23-2020, 12:02 PM by
morzh.)
Posts: 7,248
Threads: 266
Joined: Dec 2009
City: Roslyn Pa
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