Uncommon 1960s 3w valve amp with tremolo. As our engineer says below: it doesn’t really do clean. An interesting recording amp.
Serviced and modified to improve usability. Ready to ship.
Rare Valiant Model 664 combo amp for sale.
We’ve sourced these for customers in the past and they make interesting recording amps. The original design isn’t great but with a few modifications (details below) they are very usable and deliver plenty of crunch at low volume.
Original 8″ Jensen speaker is present. See photos and report for more information on internal condition.
Report from our engineer:
Valiant model 664 combo:
Not a great design, ignoring several best practice rules of thumb. Heaters grounded on one side, grounding done at various random points on the chassis, wrong type of speed pot with resistor making it only work over half its range, odd component values, etc etc..
Oodles of buzz and hum, this fixed by sorting out the valve heaters, rebuilding the power supply and making the grounding scheme sensible.
Trem now has better speed range and works over the whole of the pot rotation.
So, now it’s considerably more usable. What it doesn’t really do is clean, except at very low volume, but the whole point of a little amp like this is to get some crunch, I would think. It’s never going to be loud with an ECL82 as the power valve. Might make a nice harp amp, though not having one I haven’t tried this…
In good cosmetic condition with some oxidation spots to the face. The case is clean with some wear and damage to the tolex which has been repainted black. See photos for more information on cosmetic condition.
For sales in UK/EU the price will include 20% VAT. If you have an EU VAT number (outside the UK) you can enter it at check out to have VAT removed.
117/120v model. A step-down transformer is required in the UK/EU. We do not recommend using cheap generic Chinese mains transformers and can supply a high quality UK-made unit if required.
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