grip_racer

I just got started on this tonight, drilling holes and arranging the basic layout. The design will be based on Lukas Fikus' Lampizator.

"Lampizator is an anode follower single ended triode in pure class A with a dynamic active load. It is called SRPP circuit or totem pole. It is well known for it's high tolerance to supply voltage and supply variations, it does not require regulated stabilized supply. It „regulates itself" by means of the first triode half. It gives a pure, dynamic and powerful sound from almost any supply voltage."

I'll be using it as a preamp/buffer for my DAC, using user-selectable 6N2P (high gain) or 6N6P (low gain) tubes. With this feature, it's going to be a very versatile preamp, as will be able to provide the initial gain stage for virtually any source (with a bit of resistor tuning).

This is my first foray into tube amplifier circuits, and I am curious to see what kind of "signature" they have.

Anyway, here are some initial test-fitting and tube pictures:











I'll post more when I get to building the circuits, and fabbing a cover for that transformer.

Thanks for looking!

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Audio System:
Cigar Box CS4397 DAC (direct-out) ->
1. Dual-Mono Gainclone Amplifier -> Celestion F15 / Pinnacle AC400 / Advent AS2 / Bose 301 Series II (depending on the day )
2. 100w RMS Plate Amp, C/O @ 80hz -> Elemental Designs 9Kv.2 (vented, 23hz tuning)

soloz2

I hope you have a cover for that transformer...

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Current Sound: SA tweaked Auzen X-Fi Prelude > SA Reference IC > Musical Paradise MP-301 6v6 tube amp> Tekton Designs 4.1 single driver loudspeakers

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grip_racer

you always miss something

__________________
Audio System:
Cigar Box CS4397 DAC (direct-out) ->
1. Dual-Mono Gainclone Amplifier -> Celestion F15 / Pinnacle AC400 / Advent AS2 / Bose 301 Series II (depending on the day )
2. 100w RMS Plate Amp, C/O @ 80hz -> Elemental Designs 9Kv.2 (vented, 23hz tuning)

soloz2

Missed the bottom line...

__________________
Please do not PM me general audio questions that should be asked on the open forum. I reserve the right to ignore your PM's.

Current Sound: SA tweaked Auzen X-Fi Prelude > SA Reference IC > Musical Paradise MP-301 6v6 tube amp> Tekton Designs 4.1 single driver loudspeakers

Feedback: Heatware Ebay

BradleyW

Nice Pics.

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grip_racer

thanks, I am a photography enthusiast

__________________
Audio System:
Cigar Box CS4397 DAC (direct-out) ->
1. Dual-Mono Gainclone Amplifier -> Celestion F15 / Pinnacle AC400 / Advent AS2 / Bose 301 Series II (depending on the day )
2. 100w RMS Plate Amp, C/O @ 80hz -> Elemental Designs 9Kv.2 (vented, 23hz tuning)

waqasr

Im a real noob on this stuff, but what do those tubes do on those amps, and why are they so popular, ive never seen one in real life and would they drive a pair of speakers nicely, i mostly seen people use those for headphones??

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grip_racer

No, the "lampizator" is a preamplifier/buffer circuit, most commonly used as an output stage replacement on digital sources like cd players and DACs.

Tube power amplifiers require much larger and more robust power tubes as well as output transformers (or lots and lots of impedence-reducing tubes in OTL designs), to match a 4 or 8 ohm speaker. The 6N2P tube in my lampizator is often used with excellent effect as a driver tube for the large power tubes, however.

__________________
Audio System:
Cigar Box CS4397 DAC (direct-out) ->
1. Dual-Mono Gainclone Amplifier -> Celestion F15 / Pinnacle AC400 / Advent AS2 / Bose 301 Series II (depending on the day )
2. 100w RMS Plate Amp, C/O @ 80hz -> Elemental Designs 9Kv.2 (vented, 23hz tuning)