Product Description
Because we liked the look of this amp we modified it to make it a useable low volume amp.
Our engineer's report below includes the extensive work done and his review of the amp generally. So, in his own words, before he started on it, it was: "another Bird classic – awful design, glorified radio speaker, super dark, super noisy, polite in volume...
Even after totally redesigning the grounding scheme it was still pretty buzzy as the volume and tone were in front of both gain stages which were effectively wide open all the time. So, I moved the volume and tone controls to between the preamp and output valves, and all the noise has gone.
Tone control also redesigned to make it less dark. It’s still fairly dark, and having only one EF86 as the preamp it’s not terribly loud and doesn’t break up all that much even flat out (I doubt the speaker would handle this too well anyway), so might be best used for jazz...
Still, a vast improvement on how it was, though I say it myself...
Valves are both good – Mullard EF86, GEC EL84, generic EZ81 rectifier."
Sold "as described" with no further warranty on this item.
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AUCTION SHIPPING:
Auction shipping will be within five working days of purchase and is charged at our standard rates. Rates for common destinations for this item are:
If your territory isn’t shown and you need to know the exact charge please get in touch.
Shipping will be combined for multiple purchases, and can also be combined with non-auction items bought from us.
Read more about Soundgas shipping in our main FAQ's.
Our engineer's report below includes the extensive work done and his review of the amp generally. So, in his own words, before he started on it, it was: "another Bird classic – awful design, glorified radio speaker, super dark, super noisy, polite in volume...
Even after totally redesigning the grounding scheme it was still pretty buzzy as the volume and tone were in front of both gain stages which were effectively wide open all the time. So, I moved the volume and tone controls to between the preamp and output valves, and all the noise has gone.
Tone control also redesigned to make it less dark. It’s still fairly dark, and having only one EF86 as the preamp it’s not terribly loud and doesn’t break up all that much even flat out (I doubt the speaker would handle this too well anyway), so might be best used for jazz...
Still, a vast improvement on how it was, though I say it myself...
Valves are both good – Mullard EF86, GEC EL84, generic EZ81 rectifier."
Sold "as described" with no further warranty on this item.
========
AUCTION SHIPPING:
Auction shipping will be within five working days of purchase and is charged at our standard rates. Rates for common destinations for this item are:
- UK: £36 (inc VAT)
- Most of Europe: £55
- USA: £145
If your territory isn’t shown and you need to know the exact charge please get in touch.
Shipping will be combined for multiple purchases, and can also be combined with non-auction items bought from us.
Read more about Soundgas shipping in our main FAQ's.