.... two things, is that copper plated steel and who's picture?
3mm copper sheet: 3.0mm thick Copper Sheet | Free Delivery PS70+Vat
The picture is the Bottlehead logo badge: Bottlehead Badge | Bottlehead
Cheers,
Jeff.
BA-1 Monoblocks
The BA-1 frontend.
I found original (new old stock) TOSHIBA 2SJ109 and decided to build a BA-1 frontend.
Starting point of an amplifier build.....
The BA-1 frontend.
I found original (new old stock) TOSHIBA 2SJ109 and decided to build a BA-1 frontend.
Starting point of an amplifier build.....
Attachments
BA-1 Monoblocks
As with most of my amplifier builds - I started with an aluminum frame consruction and the PSU.
As with most of my amplifier builds - I started with an aluminum frame consruction and the PSU.
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BA-1 PSU_voltage test2.jpg87.7 KB · Views: 214
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BA-1 PSU_voltage test.jpg95.4 KB · Views: 266
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BA-1 aluminum frame_heatsink_transforme2r.jpg111.7 KB · Views: 281
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BA-1 aluminum frame_heatsink_transformer.jpg107 KB · Views: 233
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BA-1 cables under PSU.jpg102.1 KB · Views: 274
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BA-1 PSU installation.jpg99.7 KB · Views: 290
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BA-1 PSU on acrylplate.jpg105.8 KB · Views: 331
BA-1 Monoblocks
Then I mounted the frontend-pcb and bias-pcb.
Then I mounted the frontend-pcb and bias-pcb.
Attachments
BA-1 Monoblocks
Added some plexiglas/acrylicglass in translucent dark grey.
Perhaps I will change some covers to aluminum?
Acrylglass doesn't shield...
I like the look. But this is a question of taste...
Added some plexiglas/acrylicglass in translucent dark grey.
Perhaps I will change some covers to aluminum?
Acrylglass doesn't shield...
I like the look. But this is a question of taste...
Attachments
BA-1 Monoblocks
The first start up.
And the most important tool - the light bulb tester.
Some first measurements.
The first start up.
And the most important tool - the light bulb tester.
Some first measurements.
Attachments
BA-1 Monoblocks
And if you like the colour 'blue'.
Should I listen to a recording from blue note records?...
Greets
Dirk
BA-1 is a hot amp!
- heatsinks after 60 minutes at 54 C temp...
And if you like the colour 'blue'.
Should I listen to a recording from blue note records?...
Greets
Dirk
BA-1 is a hot amp!
- heatsinks after 60 minutes at 54 C temp...
Attachments
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