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Vintage 1960s Dynaco Stereo 35 ST35 EL84/6BQ5 amplifier :

Pretty much fully electrically restored: New PC13 circuit boards from Dynakit + new multi-cap power supply capacitor (see label in photo - I kept label off for vintage look but it's a brand new capacitor w/ the correct factory values and you can apply the adhesive label to metal "can" if wanted) + new gold plated RCA input jacks + new power supply dropping resistors underneath + new polarized power cord + new power supply rectifier diodes + added a thermistor to soften tube start-up current and drop line voltage just a bit given today's home voltages are a tad higher than in the 1960s.

Only non-stock/non vintage mod was I added a power switch on the back - since these amps otherwise have to be turned on/off plugged in to some sort of pre-amp.

TWO SETS OF VINTAGE TUBES INCLUDED (gives you a full working spare set !)

1) Vintage set of Qty-4 Dynaco Label 6BQ5 tubes labeled 70-09 274 which means they are almost certainly RCA and have the solid disc halos. Qty-2 Dynaco Label 7247 w/ Great Britain labels (probably Mullards). They tested and worked perfect after being in storage for several years.

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2) Vintage set of Qty-4 Baldwin Green Label 6BQ5 tubes (almost certain they would be made by Sylvania given their vintage age) and Qty-2 vintage 7247 pre-stage tubes (one is labeled Great Britain and label on other is not totally readable)


Amp works perfect w/ no hum or noise or other issues (amp is silent w/ volume all the way down) and x-formers run reasonably cool to touch at temps expected for this type of tube amplifier.

Since I don't run this amp all the time - I burned it in on the bench for several hours and it's working great, all voltages check out and plays perfectly as shown w/ MP3 player input in photos.

Some very minor wear to the brown cage and bottom metal plate - common for an amp of this vintage and age. Transformers are original Dynaco as labeled.

This item is sold As-Described

This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed. Items must be returned in original, as-shipped condition with all original packaging.Learn More.

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Listed23 days ago
ConditionVery Good (Used)
Very Good items may show a few slight marks or scratches but are fully functional and in overall great shape.Learn more
Brand
Model
  • Stereo 35
Finish
  • Metal
Categories
Year
  • 1960s
Made In
  • United States

Product safety information may be available here.

C's Electronics n Gear

Anaheim, CA, United States
Joined Reverb:2026

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