HARMONY AMPLIFIERS

Harmony marketed amplifiers from the 1940's to the mid 1970's. They produced both all tube and solid state models. Most of the amps produced were considered "rehearsal" amps. You would not typically see these models used professionally. I have seen many old Harmony amplifiers used in churches and at senior centers.

There were several top of the line models that were pro quality, and with today's retro trend, would be desirable to acquire. They have stood up well through the years.

Silvertone was Sears house brand name for amplifiers, many Harmony amps are closely related.

A good place to order your tubes is from Antique Electronic Supply in Pheonix, AZ

Rally Stripe Series

These amps are from the 1970 catalog and are solid state.

Model H 500

Technical Tip

Most old amplifiers develop problems eventually. The most common complaint is a louder than normal hum when the unit is powered up. The hum is consistently loud, with or without an instrument plugged into it. More often than not, this problem is caused by a bad Filter Capacitor. This is a very easy fix. Any qualified electronic repairman could change out capacitors with no problem whatsoever. It is an inexpensive fix also.

EARLIER MODELS

Gabi sent in a picture of a real beauty here! I love the grill cloth!

This amp makes you want to pick up your accordion, plug it in and POLKA DOWN

The H303A Features 3 Input Jacks

Model H-191

Back Panel of H-191

John owns a very clean, ready for action amplifier! Note how shiny the electronics chassis is.

Into Tuck & Roll? This was Harmony's answer to Kustom!

Technical Tip

A common complaint is a "fuzzy" sound coming from the amp even when you are playing "clean" and your volume is not loud. Most of the speakers used in Harmony amps were middle of the road, with the exception of the special design Jensen speakers that Harmony used on several of their models. These speakers can develop this problem if the voice coil of the speaker starts to "open up". This means that the speaker is on its last kicks and should be replaced. An easy test for this problem is to push lightly on the paper cone. As you push, feel for a rough vibration through your fingers and listen for a quiet rough or raspy noise. If it pushes smooth and has no noise, the speaker may not be the problem. Your next step is testing your tubes and capacitors. If you feel the rough spot and hear some rough noise, the speaker needs to be reconed or replaced.

SILVERTONE AMPLIFIERS

Silvertone guitar, made by Danelectro, the amp is part of the case!

A good place to order your tubes is from Antique Electronic Supply in Pheonix, AZ

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