Vintage Tube Amp

This is a preowned Vintage Harmony 525 Tube Amp. Dual 6V6 power tubes.

This is a mid 60′s vintage Harmony Tube amp. Cosmetically everything looks okay, but the amp does not work. When it is powered on, the amp just buzzes, but does not register anything plugged into the line inputs. Looks like the power cable was replaced at some point. Please see the schematics and photos of the capacitors/resistors inside.

Amp turns on but hums. I’ve been told it needs new tubes. You can hear the guitar playing through the humming but it’s muffled. Please Look at Photos for Condition!

Vintage Harmony 400A Guitar Amplifier. This is a fully working Harmony 400A, a super cool low-watt tube guitar amp from the 1950s-60s. It runs a single-ended tube circuit with the following tubes. Estimated at 3-5 watts, this amp is not very loud, making it perfect for practice, harmonica, or mic’d recording. It delivers classic, warm lo-fi breakup, especially with single-coil pickups. Original small speaker approx. 6 Original Jensen speaker. Volume & Tone controls. Typical vintage hum/crackle when adjusting knobs. Cosmetic wear consistent with age (see photos). ? Tone: Smooth overdrive at low volume. Perfect for slide guitar, harmonica, and retro blues tone. Think early Chess Records or garage band vibes.

Dual 6V6 power tubes.

Harmony H303A Vintage Tube Guitar Amplifier Amp. THE AMP IS WORKING Had a little Static in the first plug when adjusting volume BUT THE POWER CORD HAS BEEN CHANGED OUT ALSO MAY WANT TO / OR NEED SOME RESTORING Also missing a Knob. Please check pictures for best ideal of condition. ITEM IS IN GOOD USED CODITION ITEM MAY SHOW SOME SIGNS OF WEAR FROM BEING USED ASLO MARKS / SCRATCHES / SPOTS ALSO MINOR DUST / DIRT… UNPAID CLAIM AUTO SET FOR 2 DAYS.

This is a Vintage Harmony 525 1×15 Tube Combo Amp. In good VINTAGE CONDITION Sounds GREAT with a guitar for all you blues players. Runs without any issues, though it would likely benefit from a re-cap & maybe a tube replacement. It has a minor hum when on. Which sounds like a normal old tube amp hum. Has its Original 15in. Jensen is in great shape. This is a rare find. I acquitted this from estate of a professional musician in New Hampshire. You are welcome to pick this up here in Waldoboro, Maine. If you would be driving from south of me. I would be happy to meet you in Portland, Me.

Powers on with loud hum.

In pretty good condition.

Jensen Harmony H420 amplifier. Unknown working condition powers on speaker makes noise but needs thoroughly cleaned it’s been in storage for a long time.