The AM Forum
March 29, 2024, 06:08:37 AM *
Welcome, Guest. Please login or register.

Login with username, password and session length
 
   Home   Help Calendar Links Staff List Gallery Login Register  
Pages: [1]   Go Down
  Print  
Author Topic: Restoration of a Precision E-200C Signal Generator  (Read 17915 times)
0 Members and 1 Guest are viewing this topic.
n4joy
Member

Offline Offline

Posts: 224



« on: February 01, 2014, 11:39:38 PM »

Okay... this is not a high end transmitter or receiver but rather a simple RF generator.

I purchased this signal generator for a paltry amount on eBay sometime ago--it was in need of repair and some TLC.  I always thought the Precision E-200C was pleasing to the eye.  I've never spent time and money restoring test equipment but I thought I'd have some fun with this quick restoration project.  

Cabinet was blasted and powder coated (graphite black) since the original was chipped and rusty.  The chassis was carefully cleaned with alcohol and polished.  I replaced some wiring with new cloth covered and replaced all caps and a few resistors, and added a new power cord.  I even replaced the rotting leather handle.  It was also missing the chokes at the 120VAC input section.  I'm waiting on three electrolytics capacitors and it will be ready for alignment.  I'm practicing the lost art of cable lacing as well--thought I'd give it a go on this unit.

    


* 100_2254.JPG (1579.71 KB, 2848x2144 - viewed 1729 times.)

* 100_2253.JPG (1541.87 KB, 2848x2144 - viewed 1923 times.)

* 100_2251.JPG (1567.8 KB, 2848x2144 - viewed 1836 times.)
Logged
W7TFO
WTF-OVER in 7 land Dennis
Contributing
Member
*
Offline Offline

Posts: 2521


IN A TRIODE NO ONE CAN HEAR YOUR SCREEN


WWW
« Reply #1 on: February 02, 2014, 03:35:52 AM »

Excellent job! Cheesy

I have the same model, as well as one of their sweep generators as well.  Both are very useful in repairing vintage tube gear.

73DG
Logged

Just pacing the Farady cage...
DMOD
AC0OB - A Place where Thermionic Emitters Rule!
Contributing
Member
*
Offline Offline

Posts: 1768


« Reply #2 on: February 02, 2014, 05:09:21 PM »

Nice work.

Phil - AC0OB
Logged

Charlie Eppes: Dad would be so happy if we married a doctor.
Don Eppes: Yeah, well, Dad would be happy if I married someone with a pulse.NUMB3RS   Smiley
N0WEK
Contributing
Member
*
Offline Offline

Posts: 790



« Reply #3 on: February 03, 2014, 12:42:56 AM »

I've got one of these, this inspires me to get mine up and running!

Nice work!!!
Logged

Diesel boats and tube gear forever!
KL7HNY
Member

Offline Offline

Posts: 5


« Reply #4 on: March 22, 2014, 05:37:26 PM »

Like the posters above, I recently acquired one from eekPay, but the power lead is pretty well shot.  Based upon the restoration pics above, I'm going to go through mine (it was just a display in my shop) and bring it up to being safe to use.  Between the modern-ish service monitor that I've got on my bench and the recently-restored Heath RF-1, I'll be able to inject carrier, high i.f., and low i.f. signals into a receiver to see where a radio has gone belly-up.  I'll have to see how stable the two quasi-ancient pieces are before I use them for anything critical, and figure on still checking everything with the "real" service monitor.
Thanks to the previous posters for the pics and tips.  
Now on to refurbing the Hammarlund, Hallicrafters, and EFJ rigs  Smiley
tnx es 73
Logged
Pages: [1]   Go Up
  Print  
 
Jump to:  

AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
 AMfone © 2001-2015
Powered by SMF 1.1.21 | SMF © 2015, Simple Machines
Page created in 0.069 seconds with 19 queries.