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Radar tubes

And it’s not even an amp, it’s a night light.

(Actually it’s more of a conversation piece, and that conversation usually has the phrase, “good lord!” declared at some point.)

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No, Dusty, those are not the Moth night lights, those are Moth M-304-TL power amplifiers. 


Moth Audio web site (May 19, 2010): 35 watt single-ended class A1 no feedback interstage transformer coupled monaural amplifier. Specifications: Topology: One triode for voltage gain, transformer coupled to the output power triode. Only thermionic devices and magnetic circuits are used. No coupling capacitors and no feedback. The output power triode never leaves class A, operation and is used at half its rated plate dissipation for longer life.

Tubes: Four 6D22S rectifier "Svetlana" (Russian)

One 5Y3 rectifier "Sovtek" (Russian)

One 5842Q voltage gain & driver "Sylvania" (USA)

One 304TL output "Imac" (USA)

Wiring: Hand wired point to point for all circuits. Cardas solder user throughout.

Capacitors: Polypropylene in soybean oil for power supply circuits.

Output Transformers: Custom manufactured for Moth Audio Corporation.

User selectable: 2,4,8, & 16 Ohms.

Connectors: Cardas rhodium plated RCA for unbalanced input, Neutrik gold plated XLR for balanced input. Silver-plated speaker connectors.

Chassis: Zinc plated 18-gauge, cold rolled steel with a heavy wrinkle black powder coating. Polished and black anodized 3/16" thick aluminum top and bottom plates. Brass plaques are custom etched and filled. Indicator pins are 24K gold plated.

Glass Bell Jars: .25" thick hand blown Pyrex with acid etched logo.

Power Output: 45 watts, 5% THD @ 1kHz.

Total Harmonic Distortion: Less than 1% 40 - 20 kHz @ 35watts.

Power Supply: Low-flux leakage design using toroidal power transformers as well as toroidal inductors.

Frequency Response: (-3dB Points) 10Hz - 40 kHz .

Input Sensitivity: 1.5V for 35 watts out.

Input Impedance: 100k ohms unbalanced. 600 ohms balanced.

Power Requirements: 105 - 125 VAC 60Hz (210 - 250 VAC 50Hz.) 400 Watts.

Dimensions: 20"H x 15.75" W x 23" L

Weight: 75 Lbs.

Warranty: All components carry a 3-year parts and labor warranty. Tubes carry the manufacturers' warranties.

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I have no idea how the Phonitor sounds and if it's worth the price of admission, but it's one of the coolest with all the pots and the VU meters.

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Supposedly starting from Phonitor 2 they're really good. XE has the same amp topology, but with a proper balanced output. The inner signal paths are SE, as doing a balanced X-feed matrix would cost a fortune.

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~$7 lbs, ~$19,000

SZ0h3KS.jpg

piC1hd7.jpg

NJri0wC.jpg

Quote

iPhone XS Max £1100
Astell&Kern Ultima SP1000 DAP £2500
Unknown (DAP?)
Unknown (battery pack?)
Mass Kobo 404 balanced amp £1500
Chord Hugo DAC

£1800


Sony WM1Z DAP
£2500


Mysphere 3 headphones £3000
Grado PS2000E headphones £2700

iPhone: 7.34oz
A&K SP1000: 13.64 oz
Mass Kobo: 22.9281 oz
Chord Hugo: 15.8 oz
Sony WM1Z: 16.05 oz
Mysphere 3.2: 11.9931 oz
Grado PS2000E: 24.7 oz

Edited by Knuckledragger
The WYSIWYG editor is a steaming pile.
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3 hours ago, EdipisReks1 said:

It's been done, and better. 

25394.jpg

Ah, 240p Memories ...

Where Are They Now?

 

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You know it's serious with cable lifters...

 

Edited by Pars

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^^^ Those Dali's should be in Speaker Porn....I've liked some of the sound I've heard from that small dome mid and ribbon tweeter of theirs....

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