1957 V-M 1275 Tri-O-Matic

Discussions about instruments in smaller cabinets. If they don't set on the floor, they belong here. Tube and solid state, stereo and mono.
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Hi-Fi-Mogul
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1957 V-M 1275 Tri-O-Matic

Post: # 30348Post Hi-Fi-Mogul »

This gal was sittin' in bubble wrap on a chair for some time,
and I forgot what was in it, so I had a nice surprise opening her up.

Amp is 35W4, 12AT6, 50C5, with a pristine 5 x 7 speaker.
All original V-M branded tubes there.

The 1200A changer's original idler wheel was still good !

The original Sonotone 2-T still put out that 1 volt,
but I replaced it with a Pfanstiehl stereo cartridge.

The cabinet was pretty soiled, and cleaned up well.

After changer was restored and amp re-capped,
the sound is very nice.

The little amp is very quiet. [ : )

Notice the spent match I found under the record changer.

Someone had too many martinis and cigs at the party.
Attachments
V-M 1275 open amp.JPG
Don't play with matches kids.png
1275 Amp Siesta Switch Light-1.png
VM 1275 Chassis open up-1.png
V-M 1275-side.JPG
V-M 1275 complete.png
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William
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Re: 1957 V-M 1275 Tri-O-Matic

Post: # 30349Post William »

Nice V-M, Mr. Mogul, and looks very similar to my V-M 1280. If yours sounds as good as mine you have a very nice machine there.

Bill
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TC Chris
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Re: 1957 V-M 1275 Tri-O-Matic

Post: # 30354Post TC Chris »

I've always liked the looks of V-M devices of that era. But what were they thinking when they they put three tubes right underneath the filter cap? Didn't the engineers understand convection?

Chris Campbell
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Re: 1957 V-M 1275 Tri-O-Matic

Post: # 30356Post Hi-Fi-Mogul »

TC Chris wrote: Fri Aug 14, 2026 3:18 am I've always liked the looks of V-M devices of that era.
But what were they thinking when they they put three tubes right underneath the filter cap?

Chris Campbell
Yes, I realized that when I put the amp back in,
and checked the new caps temp after running the amp.
They were toasty to touch.

Caps are rated at 105 Centigrade, but why
expose them to such an environment ?

I'll go over lots of my photos to evaluate where to
re-locate the caps.

I had to also add some restraint to the wiring in
that area, so it wasn't hanging near the tubes.

L
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