1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Test Equipment

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
VTVM EICO 232 LM317 BATTERY CHANGE
Bradley Rush
RadioMonkey
***
Posts: 220
Threads: 56
Joined: Oct 2011
City: Lompoc CA
#1

12-23-2016, 08:23 PM
Did this a while ago. Transformer fused in out. Very stable ohms.


Attached Files Image(s)
   
Find
Bradley Rush
RadioMonkey
***
Posts: 220
Threads: 56
Joined: Oct 2011
City: Lompoc CA
#2

12-23-2016, 08:30 PM
More of the LM317 battery replacement


Attached Files Image(s)
   
Find
Bradley Rush
RadioMonkey
***
Posts: 220
Threads: 56
Joined: Oct 2011
City: Lompoc CA
#3

12-23-2016, 08:31 PM
More Eico 232 LM317 REPLACEMENT


Attached Files Image(s)
   
Find
Arran
Phorum Expert
*****
Posts: 4,858
Threads: 54
Joined: Sep 2008
City: Sandwick, BC, CA
#4

04-02-2017, 04:21 AM
I have a slightly older Eico where the previous owner rigged up a substitute for the battery by tapping off the filament winding of the transformer, all he used was some diodes, a resistor, and some large value, low voltage, electrolytics. It worked fine for me until I blew out one of the resistors on the Ohm meter section after I accidentally used to to measure some high voltage.
Regards
Arran
Find
« Next Oldest | Next Newest »
Thread Closed




Users browsing this thread:
[-]
Recent Posts
Philco 42-345 Restoration/Repair
Today I've been reading through the site trying to learn more about this radio. I also soldered the lose power cord cabl...osanders0311 — 08:24 PM
Philco 610B oscillator wiring
Thanks David! I do have that same later prodution model 610 schematic. I've also studied the Philco service bulletins fo...Tubester — 08:12 PM
Philco 610B oscillator wiring
Some info from Beitmans says late production. David   David — 06:06 PM
Restoring Philco 96
Oh wow! Just found this thread.  Brings me back to early days on this phorum.  I did a 96 back in 2017.  Thread here: ...rfeenstra — 06:05 PM
Philco 610B oscillator wiring
Thanks for the replies. It's not the really the hum that I am after. Just trying to understand why only the shortwave ba...Tubester — 04:01 PM
Restoring Philco 96
70 and 90 are Superhets, but at least the 2x45 model of 90 uses the Plate detector (and so does 70). Also the Atwaters,...morzh — 03:28 PM
Restoring Philco 96
Morzh, Prayers for your mom. I am sure that there was enough pain living through the Holocaust as a child. I pray dail...MrFixr55 — 02:19 PM
Philco 610B oscillator wiring
Hi Dan, Divide and conquer. First off trry to differentiate between 60Hz and 120 Hz hum. 120 Hz hum has a higher pit...MrFixr55 — 01:49 PM
Restoring Philco 96
Yes, other than takin a toll on your back, they are undeed way more repair friendly than many other Philcos. To me, som...morzh — 01:04 PM
Philco 610B oscillator wiring
If the wires look like they were this way from the factory (very neat and very dull soldering joints), I'd leave them be...morzh — 12:58 PM

[-]
Who's Online
There are currently 2871 online users. [Complete List]
» 2 Member(s) | 2869 Guest(s)
AvatarAvatar

>
  1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Test Equipment