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

You guys did this to me!
#8

Good morning everyone.  After a brief hiatus, I've gotten back inside my "new" tube tester.  After doing a little testing with my DMM, I decided to replace all the resistors in the unit.  What made it a little difficult is the schematic for the precision resistors show values, but not wattage.  They are all open air units consisting of resistor wire wrapped around pieces of phenolic board.  I ordered 5 watt, 1 percent wirewounds from Mouser.  I hope they will suffice.  The unit has one Aerovox 0.1 MFD 400 WVDC capacitor in it.  I'm replacing that with a 0.1 MFD 630V mylar film cap.  The unit also has a copper oxide half-wave rectifier, which tested open when I put my meter to it.  I'm going to replace that with a 1N4007 diode.  I've always said that I know just enough about electronics to be dangerous, so I'm calling on my Phorum Phriends for input again.  Do you think these replacement parts are correct for the unit, or am I missing something?  Any and all input is appreciated.  Take care, Gary

"Don't pity the dead, pity the living, above all, those living without love."
Professor Albus Dumbledore
Gary - Westland Michigan


Messages In This Thread
You guys did this to me! - by GarySP - 01-17-2015, 11:35 AM
RE: You guys did this to me! - by codefox1 - 01-17-2015, 03:40 PM
RE: You guys did this to me! - by GarySP - 01-23-2015, 11:50 AM
RE: You guys did this to me! - by Eliot Ness - 01-23-2015, 01:25 PM
RE: You guys did this to me! - by GarySP - 01-24-2015, 10:57 AM
RE: You guys did this to me! - by Eliot Ness - 01-26-2015, 03:42 PM
RE: You guys did this to me! - by Chuck Schwark - 01-26-2015, 03:47 PM
RE: You guys did this to me! - by GarySP - 02-27-2015, 08:25 AM
RE: You guys did this to me! - by Radioroslyn - 03-10-2015, 08:48 PM
RE: You guys did this to me! - by GarySP - 03-15-2015, 12:36 PM
RE: You guys did this to me! - by Mondial - 03-15-2015, 05:15 PM
RE: You guys did this to me! - by GarySP - 03-15-2015, 09:21 PM
RE: You guys did this to me! - by GarySP - 03-15-2015, 09:22 PM
RE: You guys did this to me! - by GarySP - 03-15-2015, 09:25 PM
RE: You guys did this to me! - by Mondial - 03-16-2015, 07:24 PM
RE: You guys did this to me! - by GarySP - 03-17-2015, 09:58 AM
RE: You guys did this to me! - by emcgill - 10-16-2019, 09:06 PM
RE: You guys did this to me! - by emcgill - 10-26-2019, 06:09 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
GE Model P-975F
There are 2 of these on ePay and several pics on Radiomuseum.  Although the front looks like a very popular Hong Kong ra...MrFixr55 — 09:26 AM
Rare zenith 6s137 restore
Hi Fred, I get things to work, but what you, Russ, RadioSvit and many others on the Phorum do with cabinet and chassis...MrFixr55 — 09:02 AM
PT-6 antenna connections
Hi Bridcarl +1 on the others.  Pin 6 of the 7C6 is the AVC Diode so it is appropriate that that pin 4 of the coil con...MrFixr55 — 07:30 AM
462ron
Joseph, this is beyond awesome. A lot of thought and engineering went into this and you hit a home run! Now I must save ...462ron — 07:27 AM
Cannot Adjust an IF Transformer’s cores
Outstanding work indeed. I wish I could come up with solutions like this.slford310 — 11:16 PM
Cannot Adjust an IF Transformer’s cores
The abilities of our 'Phorum Pholks" never ceases to amaze me! Fantastic fabrication, Joseph! I'm waiting now for...GarySP — 08:27 PM
PT-6 antenna connections
Thanks. I never realized that was a notch noted in the schematic as described. I’ll recheck my wiring.bridkarl — 08:13 PM
Cannot Adjust an IF Transformer’s cores
Thank you! I was quite new to the Phorum when I started this post, so I feel like it might be advantageous to publish a ...jrblasde — 08:07 PM
PT-6 antenna connections
Notice in the schematic the notch at the bottom of the antenna coil is between pins 3 & 4. Yes, pin 6 of the 7C6 is...RodB — 07:34 PM
bridkarl
I have two PT-6 chassis. On both there is a blue wire that runs from the above chassis transformer to pin 6 of 7C6. So t...bridkarl — 07:23 PM

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

>