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

Eico 221 VTVM - issues
#2

If there are any connections to the chassis via a riveted or even bolted connection, do this: Loosen & refasten nut/bolt connections. For riveted connections use an aggressive liquid flux sparingly on the riveted joint chassis to tab and a 125 watt or better soldering iron with a large copper bolt. Solder that riveted connection. If cleaned, fluxed properly and the iron suggested used solder flow smoothly around the multiple joints.

Be sure serrated washers are used to secure the pots.

Unless there is a wiring error, a short from wire clippings or a solder splash that should get the voltage down.

BTW the manual does not have voltage test points. Obviously the assembly manual does, strange...

https://stevenjohnson.com/manuals/mfiles/eico221.pdf

Oh, use a 10k to 20k ohms/volt analog meter for the measurements unless EICO species a different meter. A DVM does not load the circuit so readings will be deceptively high.

For the caps, take your pick here: http://www.antiqueradios.com/forums/view...8&t=242692

YMMV

Chas

Pliny the younger
“nihil novum nihil varium nihil quod non semel spectasse sufficiat”


Messages In This Thread
Eico 221 VTVM - issues - by Greggshere - 01-22-2019, 03:15 PM
RE: Eico 221 VTVM - issues - by Chas - 01-22-2019, 08:01 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco 42-345 Restoration/Repair
Yes, 57 is an electrolytic cap that should be 12 mfd 400 volts according to the parts list from the Phorum library schem...RodB — 06:01 PM
Philco 42-345 Restoration/Repair
Looks like if I am reading it correctly it looks like the silver capacitor#57 that appears to be a replacement is of a l...osanders0311 — 05:09 PM
Philco model 38 code 121 not receiving signal.
Thanks Arran. Yeah this plastic is pretty thin. It's a little thinner than the original stuff. It kinda reminds me of p...Stormlord5500 — 04:37 PM
Testing a speaker and output transformer Trutone A2-G
The equivalent of one short turn is basically the same as that of a shorted load. If it is the primary's turn, then the ...morzh — 03:53 PM
Testing a speaker and output transformer Trutone A2-G
I've never had an output transformer become shorted, the failure mode is usually an open primary, or in a center tapped ...Arran — 03:52 PM
Philco model 38 code 121 not receiving signal.
As long as the plastic sheeting isn't too thick, I think that the thickness of photographic film would be just about rig...Arran — 03:19 PM
Philco model 38 code 121 not receiving signal.
Well why not! :lol:Stormlord5500 — 03:14 PM
Philco model 38 code 121 not receiving signal.
Good luck next thing you know you will be winding coils just for the fun of it. DavidDavid — 11:29 AM
Testing a speaker and output transformer Trutone A2-G
morzh Short-circuited turns can be considered as a half-dead transformer. But on this case transformer will hot and s...Vlad95 — 11:01 AM
Testing a speaker and output transformer Trutone A2-G
I am not sure how a transformer could be weak. It could be inadequate, but only when you replace the original with somet...morzh — 09:56 AM

[-]
Who's Online
There are currently 2218 online users. [Complete List]
» 2 Member(s) | 2216 Guest(s)
AvatarAvatar

>