1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Other Radios (Non-Philco)

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

Threaded Mode
Heathkit Sb-102 150 Volt problem
vecher
Phorum Expert
*****
Posts: 933
Threads: 140
Joined: Mar 2015
City: Lansdale State, Province, Country: PA
#1

01-21-2020, 12:29 PM
All, I seem to have a problem with the +150 Volt supply..I found the 1K 7 watt resistor open I replaced it and turned the radio on I then smelled something burning the resistor again had opened.. so question is what does the + 150 volts feed? must be something either shorted or drawing a lot of current..

This is in RX mode My HV 800 Volts are good and also the +300 volts The bias voltage manual says -111 I read -124..

Skip
Find
« Next Oldest | Next Newest »
Thread Closed




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
462ron
Got it. Sounds easy enough that even I could do! :lol: Thanks Mike! Ron462ron — 09:00 AM
Philco 91 Tuning Condenser
Nope it was the metal part. I got that off. In fact I took the whole thing apart. Pretty easy.dconant — 08:54 AM
Philco 91 Tuning Condenser
I thought you meant the actual dial....there are rivets.morzh — 08:42 PM
6TPZ and 5TPO Radio Help
This is what I meant. I would start from touching Test Point 12 on the sch. See if you hear hum.morzh — 08:37 PM
6TPZ and 5TPO Radio Help
Here are the links. 6TPZ and 5TPO The speakers are good. I've tried several known good ones. I just have to fi...R3Sons — 06:27 PM
Philco 91 Tuning Condenser
I just found a set screw. Was able to turn dial just enough to see it and loosen it. I have it off now.dconant — 06:14 PM
Philco 91 Tuning Condenser
Hello, Does anyone know how the dial plate comes off the tuning condenser shaft? The dial itself id so warped I can't...dconant — 06:01 PM
Eico 368 TV/FM Sweep Generator
Ron, for the future: In order to change the name of teh topic, 1. Go to the very first post. 2. Hit "Edit...morzh — 04:29 PM
6TPZ and 5TPO Radio Help
Transistors are easy. No converters. If you have input voltage, then just put some signal through. Or touch your fin...morzh — 04:25 PM
462ron
Hi Mike, I believe I tried different ways to change the header for my post but no luck. Anyway thanks for changing it fo...462ron — 04:02 PM

[-]
Who's Online
There are currently no members online.

>
  1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Other Radios (Non-Philco)