What speakers are you looking to drive with this flea on a flea amp? Good luck!
-but on what frequency?
-best NO crossover.......imposible or very hard to find such speaker.
Maybe a very good designed back loaded horn with a linear single driver responce (95-96 db spl,low mass cone,light bobin,soft suspensions)....will be a start to enjoy 2A3 sound.Placement in room (corners) to gain a few db on low registers ca be a plus.
I heard Joseph Esmilla's 171-A on his set up a couple of months ago. I think you're going to be in for a treat. Very nice midrange on those valves and a smooth relaxed sound.
2nd unit, slightly different circuit...
Hi sir Tony,
Been following your projects over the years and your layouts are getting more and more refined. Are those copper boards you used?
i can not say, so far this is the first one i tried...
my next build is a trioded 813 set driven by 11hm7 pentode...
now making irons.....
Hi,
Some pictures of my current amp.
Used Tubes:
input :Standard 4019A
driver: Western Electric VT-25
power: Full Music PX-25 mesh
Rectifiers: half wave Klangfilm KL75303 (Telefunken RGN 1404)
All tubes are connected with interstages, the rest of the transformers you see are chokes.
The amp has double power channels; one for mid/high (actively filtered), one for low frequencies. The channels are split after the VT-25 with two interstages (primary in series) to drive two PX-25 into two permalloy output transformers.
Volume control is by a transformer with 24 sec. windings. the counter tubes indicate the volume setting.
Front is made from maple wood, knob from thuya burl wood, rest is Padauk wood.
Some pictures of my current amp.
Used Tubes:
input :Standard 4019A
driver: Western Electric VT-25
power: Full Music PX-25 mesh
Rectifiers: half wave Klangfilm KL75303 (Telefunken RGN 1404)
All tubes are connected with interstages, the rest of the transformers you see are chokes.
The amp has double power channels; one for mid/high (actively filtered), one for low frequencies. The channels are split after the VT-25 with two interstages (primary in series) to drive two PX-25 into two permalloy output transformers.
Volume control is by a transformer with 24 sec. windings. the counter tubes indicate the volume setting.
Front is made from maple wood, knob from thuya burl wood, rest is Padauk wood.
Attachments
What a fantastic build! The nixie counter for the stepped attenuator is a great idea! I think you ought to have a picture with the filaments lit up in a dark room.
Hi Guys,
Sorry! I didn't mean to show-off. I hope to inspire people to build amps in a different way as standard.
A few years ago I decided to make my lonely island amplifier; things got a bit out of hand after deciding for Tamura transformers, these are extremely expensive and hard to get in Europe. But now the design is so universal that I have already tried numerous different tubes and schematics without much trouble or additional costs.
And yes, it looks very cool in the dark.............
Sorry! I didn't mean to show-off. I hope to inspire people to build amps in a different way as standard.
A few years ago I decided to make my lonely island amplifier; things got a bit out of hand after deciding for Tamura transformers, these are extremely expensive and hard to get in Europe. But now the design is so universal that I have already tried numerous different tubes and schematics without much trouble or additional costs.
And yes, it looks very cool in the dark.............
