Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12, 2025) x

Thread Closed

Heathkit SG-6 signal generator
#4

If you follow the hv around thru the 6C4 osc tube the plate and cathode should be at about the same potential. Unless the variable cap is shorted (rubbing plates). I think it's about 80vdc. RF wise the plate is at ground thru that .01 cap.

I'm assuming you've replaced the caps, out of tolerance resistors, and the power supply is making 140vdc or so at the cathode of the rectifier.  Q Tips and denatured alcohol does wonders for the switch contacts.

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 it!

Terry


Messages In This Thread
Heathkit SG-6 signal generator - by Rob Quay - 01-27-2022, 12:00 PM
RE: Heathkit SG-6 signal generator - by vinzer - 01-27-2022, 02:20 PM
RE: Heathkit SG-6 signal generator - by Radioroslyn - 01-27-2022, 02:43 PM
RE: Heathkit SG-6 signal generator - by Rob Quay - 01-27-2022, 03:13 PM
RE: Heathkit SG-6 signal generator - by morzh - 01-27-2022, 08:22 PM
RE: Heathkit SG-6 signal generator - by GarySP - 01-28-2022, 11:11 AM
RE: Heathkit SG-6 signal generator - by Rob Quay - 01-28-2022, 11:40 PM
RE: Heathkit SG-6 signal generator - by morzh - 01-29-2022, 06:36 PM
462ron - by 462ron - 01-30-2022, 01:11 PM
RE: Heathkit SG-6 signal generator - by Rob Quay - 01-30-2022, 08:42 PM
RE: Heathkit SG-6 signal generator - by Rob Quay - 01-31-2022, 01:44 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco P45-6365 Universal Transformer Instruction Manual
Can anyone guide me to where this may be found?GRG — 03:00 PM
54C Complete Teardown/Rebuild
I don't think that I have encountered a 12Z3 before, curious how it uses one of those but includes a #43, which is a 25 ...Arran — 02:17 PM
HiFi (Chifi) tube amp build - but my own design.
It's the other forum. I'm also in DIY, but mostly read there. Honestly, I kinda jumped into this without much thought to...TV MAN — 10:43 AM
Philco 71 Code 125
Hello,  I am in need of a schematic for this radio. Mine has the three separate circular tube shields and a shadow me...dconant — 08:06 AM
Stromberg Carlson 1500 Squeal
And life just keeps getting more complicated.dconant — 07:57 AM
54C Complete Teardown/Rebuild
Hello Roy, here is this one sincerely Richardradiorich — 12:45 AM
54C Complete Teardown/Rebuild
Richard, Had grabbed it already but thank you just the same.  I find myself wanting to find some way to block out the...glyphmon — 12:03 AM
54C Complete Teardown/Rebuild
Hello roy, here is a link to the schematic . Sincerely Richardradiorich — 11:54 PM
54C Complete Teardown/Rebuild
Richard, The Silvertone 2014 also is a transformerless set, so I am incorporating a 1:1 600 ohm audio isolation transfo...glyphmon — 11:37 PM
Preliminary work on wife's Silvertone 2014
Did an alignment today which was interesting.  IF alignment went great, almost all was already spot-on.  Adjusting on th...glyphmon — 11:35 PM

[-]
Who's Online
There are currently 1980 online users. [Complete List]
» 2 Member(s) | 1978 Guest(s)
AvatarAvatar

>