Ampeg V4B -- early 1970s
Selling my (according to the EIA date codes) 1973 Ampeg V4B.
I picked this up recently "as-is".
I did some minor maintenance(cleaning and lubing pots, switches, and jacks) and serviceability modifications, and now it's ready to rock.
When I first got the amp home, it was 100% original--tubes & everything! But, one of the 7027's was broken.
So, first order of business was to get a new set of tubes into it.
I went with 6L6GC for the power tubes due to their lower cost and negligible differences from modern 7027.
Other tubes are recent production with the exception of the 6K11, which is an NOS tube.
Did some minor mods to the amp:
Then a couple less-minor modifications:
Finally, there are a couple remaining issues with the amp.
Parts have been ordered from FlipTops and will be installed prior to shipping:
When I reassembled and biased this amp, it measured precisely 540VDC on the plates--which is exactly what the schematic specifies.
So it's running strong, steady, and well within specifications.
Alas, my Peavey Classic 400 still really satisfies my tube craving...and I have medical bills to pay.
So, I will run this ad for a week here. If I don't find a buyer within that week, I will have to list the amp on eBay.
If you've been craving a vintage Ampeg bass head--let me know!
I'd definitely prefer to get it to someone who is going to play it and love it...
$620 + shipping(price was adjusted to account for new parts)
Here are pictures of the installed fuse holder and bias pot/grounded power cord
Here is the back of the amp
A close-up of the front panel, showing the replacement knobs, and another pic of the back
OK, I think these are the last pictures
These show the schematic and the input jack area
Just a free bump for one of the greatest bass amps of all time. I've got one that's been modded for 6550's and when paired with a 2x15 cab it's unbeatable. In fact my SVT has never left the house since i got the v4b.
Also, based on a conversation with a prospective buyer, I've gone ahead and ordered the replacement parts from FlipTops.
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