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PL508 @ The Valve Museum
http://www.r-type.org/exhib/aaa0326.htm
The PL508 is also rated for audio use and can deliver 12 Watts in single ended service. The ra value given is from the original Mullard data. Type EL508 is electrically the same but with a 6.3 Volt heater. The stitched anode has the …
PL508 - MV Audio Labs
https://www.mvaudiolabs.com/tubes/tube-data-library/pl508/
PL508 All tube operating points below are by no means definitive good sound recipe for your particulate tube project. Lowest THD point is not necessary best sounding one and there is always some variance even in a NOS tube batch from the same manufacturer! Below information is only useful as a general starting point and […]
Homebrew Radio Links - K3UH (Russ)
https://k3uh.com/test/Audio_Amplifier_-_2_Stage.htm
[From German]. Cool looking, but I'm not sure I understand. 8 PL508 Endröhren and ECF80/E80F: Single Ended: 23.0: ECF80, ECC82, PL508: 208: 4W Audio Amplifier [In Russian]. Simple circuit found in a Russian forum. Scroll 1/3 way down page. Single Ended: 23.0: EF86, 6P1p: 209: 838 SE Amp [In German] Uses 6EM7 as driver tube. Single Ended: 23.0 ...
6P41S maximum anode dissipation | diyAudio
https://www.diyaudio.com/community/threads/6p41s-maximum-anode-dissipation.378777/
The original amplifier has a supply voltage of almost ~ 700V at rest (no signal), but at maximum power this voltage drops to ~ 600-620V. The supply voltage of G2 for PL508 was ~ 260V, but for 6P41S I stabilized it to ~ 200V using a simple stabilizer (2 …
Hi quality Push Pull Amplifier with PL500 / PL504/ EL500 ...
https://www.tubes.rs/quality-push-pull-amplifier-pl500-pl504-27gw6-12au7-ecc82-12ax7-ecc83/
This is hi quality bass guitar amplifier with output TV sweep tubes PL500 PL504 27GB5 EL500 EL504 6GW6 6P36S 6P41S 6GB5 push pull class AB2. Ua=250V, Ug1=-45V, AB2, Raa = 3k. Frequency range: 30Hz-15kHz @ Po=30W continious, 0.5dB Distortion: 40Hz 1.4%, 1kHZ 0.8%, 10kHz 1.7% for full continious power 30W: Hum and noise:-67dB Intermodulation: less then 1% …
PL504 low power amp - The RadioBoard Forums
http://theradioboard.com/rb/viewtopic.php?t=5545
It has PC88 tubes as preamp, and PL504 as power tube. Both of these work nice at the 32 volts the HP power supplies deliver, plus the filament voltages add up to 31V at 300mA per side. Or, no need for special filament power. The whole thing works at 32 Volts - …
4X PL500 / PL504 PP Mono Tube Audio Amplifier With ...
https://www.youtube.com/watch?v=OxFGdXkcFgk
This is a 4XPL504 Audi amplifier with mono built in mixer and Bluetooth Function. The output power is about 25-30W into 4 ohms load. Max 60W music power out....
Oswalds Mill Audio - Parallax PL519 | OMA Amplifiers
https://oswaldsmillaudio.com/parallax
One route combines high power amplifiers with low efficiency loudspeakers. Our way is different. We created Parallax PL519 as a low power single ended amp to be used with high efficiency loudspeakers. The result is a truly startling level of naturalness, detail, and ease, something not found in audio equipment today.
Building a Stereo Tube Amp : 11 Steps (with Pictures ...
https://www.instructables.com/Building-A-Stereo-Tube-Amp/
The grid carries a negative voltage and is connected to an input source, which, in the case of this amp, is a fluctuating audio signal. The negative voltage on the grid repels a certain amount of the electrons leaping off of the cathode, and how many electrons it repels depends on how negative it is, which in turn depends on the amplitude of ...
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