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

Thread Closed
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

LED Tuning indicator for 37-6xx Series
#5

The correct connection is to the point where the two 1 Meg resistors #44 and #50 come together- Pin 4 of the 6Q7. It was late last night and I traced the wrong wire. In my actual circuit I don't use the pin 4 detector but use a solid state detector in it's place- that shouldn't make any difference.

Sorry about any confusion. My 37-620 was a junker at one time and was brought up from that condition. It could be much neater, but that's not a priority.

Pete AI2V


Messages In This Thread
LED Tuning indicator for 37-6xx Series - by AI2V - 08-14-2007, 10:12 PM
[No subject] - by Texasrocker - 08-14-2007, 10:49 PM
Shadow meter still is best - by AI2V - 08-15-2007, 09:16 AM
[No subject] - by Terry Judkins - 08-15-2007, 10:35 AM
Correction in connection - by AI2V - 08-15-2007, 02:26 PM
[No subject] - by Texasrocker - 08-15-2007, 11:22 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
91H Code 126 Restore
I'm pretty sure that the dotted line I circled in an earlier post signifies that it is applicable to the 226 model which...RealRider — 08:05 AM
Philco 49-1040
Hello bob, that underside looks like it is all original ! Sincerely Richardradiorich — 02:07 AM
Philco 49-1040
Oh yes, many bumblebees and loktal tubes. The cutout is for the speaker.  Here's a photo from a different set. Bob Andersen — 12:59 AM
Philco 49-1040
Bob; Looks like another "Bumble Bee" special, like my Brand Z T.O radios. Is that section they took out of ...Arran — 12:19 AM
Philco 49-1040
Hello Bob, You are like the home for lost tv's like how people bring pets home ! Sincerely Richardradiorich — 12:00 AM
Philco 49-1040
I thought I had an arrangement to restore this set for a customer but his wife said heck no.  Instead, he gave it to me....Bob Andersen — 10:29 PM
Philco 46-480 Electronic Restoration
I kept working on reassembly this week. I wasn’t able to solder for a few days while it was too cold (single digit low t...jrblasde — 09:27 PM
Atwater-Kent 84, restoration.
Well, powering it up would be too good to be true, and I had that feeling. Before I did, I decided to check the coils...morzh — 06:02 PM
An attempt to remove the Field Coil from a G speaker
Thanks Chas, sure will give it a look!morzh — 03:39 PM
An attempt to remove the Field Coil from a G speaker
Mike, Lookup  murrayatuptown on ARF. Seems he has a dilemma with surplus field coils. Could get lucky and have what y...Chas — 01:26 PM

[-]
Who's Online
There are currently 2604 online users. [Complete List]
» 1 Member(s) | 2603 Guest(s)
Avatar

>