A Closer Look At The Lafayette LA-35B

1 05 2012

Looks like a few components have outlived their service lives by a few decades…

Tracing the circuit of the amp right now prior to changing out bad components and tubes.





Lafayette Bass Amp Confirmed As LA-35B

15 03 2012

Needing a reliable bass amp, I removed the chassis from the old Lafayette bass amp and was surprised to find the model number stamped on the circuit board.

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I’ve seen other photos online of similar circuit boards in amps made by Univox for Lafayette.

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Huge transformer really gives the chassis a lot of weight! Next up, I’ll be replacing all 10 capacitors in the circuit and re-tubing it as well in hopes that it results in a usable bass amp for recording.

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Mystery Lafayette Tube Amp: LA-35?

31 10 2011

It’s a rare occurrence when I run into an old Lafayette tube amp and I just had to pick this one up last year when I saw it in a music store. The picture below shows it in the store.

At some point in it’s life, someone had bolted a homemade wheeled stand to it’s bottom. Looks pretty bad but comes in handy.

With the 15 inch Jensen and a horn handling speaker duties, I think it’s a bass amp.

There is no model number anywhere on the amp. Research has led me to believe it may be a Lafayette LA-35?





Silvertone Twin Twelve Video Two

9 10 2011




Silvertone Twin Twelve Video One

31 08 2011




Silvertone Twin 12 Circuitry

7 07 2011

I must admit I was surprised to see how much circuitry there is in the chassis.

The red filter caps are Lyticap dry electrolytics and they look to be original. No dimpling or bleeding is evident.

Yellow General Instrument capacitor is completely encased in wax.

The paper in that choke is soaking with oil and bleeding. Like the filter caps, must be replaced.

There are two pairs of brown mica capacitors coupled together by black electrical tape. Have never seen that before.





Silvertone 1484 Twin 12 Tubes

29 05 2011

Lots of tubes in this beauty. The tall silver object to the left is a cap can but to the right is an 6CG7, three shielded 12AX7’s and another 6CG7.

Why didn’t all amp manufacturers print the tube requirements directly on the chassis like this?

Output tube and phase inverter sockets.

Sylvania made 6GC7, RCA made 6L6 and Phillips made 12AX7/ECC83 tubes.  Simply beautiful.








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