Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

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

One irritating little amp - VM 557
#7

Those sand resistors may just be the culprit. I'll swap those and see how it behaves. They looked & checked pretty good, so I didn't mess with them. I did clean the tube pins and sprayed some deoxit on the sockets - that's when it started smoking. I'm betting there's a carbon track between the pins. It's kinda weird to run into this after all these years. I used to see that on TVs, a certain model or brand comes in and "well, it'll those (blank) replaced or have a bad (?)". This little amp is pushing over 350v in some parts. Pretty stiff for a simple phono. 

I'd like to know the history of these. Most of those suitcase phonos where just rectangular boxes with lids and a player inside. This one has 2 speakers, maybe 3 - I think I remember a tweeter, separate bass and treble controls, external input & output. Even the cabinet has a megaphone wedge shape to it, starting narrower at the back and flaring out at the front. This is not your average suitcase phonograph from the era! This one is designed to put out some serious sound waves!

If I could find the place called "Somewhere", I could find "Anything" Icon_confused

Tim

Jesus cried out and said, "Whoever believes in me , believes not in me but in him who sent me" John 12:44


Messages In This Thread
One irritating little amp - VM 557 - by TV MAN - 03-05-2025, 08:57 PM
RE: One irritating little amp - VM 557 - by David - 03-05-2025, 09:39 PM
RE: One irritating little amp - VM 557 - by morzh - 03-05-2025, 09:51 PM
RE: One irritating little amp - VM 557 - by Arran - 03-06-2025, 03:45 AM
RE: One irritating little amp - VM 557 - by TV MAN - 03-11-2025, 11:00 AM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
5U4 vs 5Z4 tubes
Well this is a Hallicrafters SX/9 circa 1936. No real issues so far although I dodged a real bullet with a cap that was...bridkarl — 07:59 AM
5U4 vs 5Z4 tubes
The pinout is the same but the 5U4 has a 3 amp filament, verses 2 amps or less on the 5Z4. I think that the pinout of a ...Arran — 12:04 AM
Philco 42-345 Restoration/Repair
By the way. osanders0311 Take a look here: Dial cord stringing Guides May be here you can fount correct string settin...Vlad95 — 11:15 PM
5U4 vs 5Z4 tubes
5U4 and 5Z4 almost identical. I think nothing happened if you left 5U4 instedad 5Z4 long time. Just heater current 5U4 ...Vlad95 — 11:02 PM
Philco 42-345 Restoration/Repair
Hello Vlad95 , Very Funny ! Sincerely Richardradiorich — 11:01 PM
Philco 42-345 Restoration/Repair
RodB You are European yourself   :evil: I'm Canadian for the last 30 years  :snowman: But not Yankee  :lol: Vlad95 — 10:49 PM
Philco 42-345 Restoration/Repair
The band switch selects different oscillator coils for the band selected. I would look for a bad connection in the switc...RodB — 10:31 PM
Philco 42-345 Restoration/Repair
Hang in there...PaulPaul Philco322 — 09:30 PM
Philco 42-345 Restoration/Repair
The thrill is gone again, thought I was close to being done with it. Well Friday it was receiving broadcast, Saturday mo...osanders0311 — 07:47 PM
Help with Supreme 599
Iam getting closer to fixing it. I bumped Up the tranny voltage to get 5v on the 80 tube. I gan get the needle to move ...daveone23 — 03:41 PM

[-]
Who's Online
There are currently 758 online users. [Complete List]
» 1 Member(s) | 757 Guest(s)
Avatar

>