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812A Build | diyAudio
https://www.diyaudio.com/community/threads/812a-build.235600/
Ok, I've finally gotten around to looking into upgrading my current home amp. Right now I have a 6146SE (6C4 driver) and plan to move/swap/upgrade to some 812As driven by 6SN7s. Here's the circuit I'm going to use. I've already scratch-built it and it sounds great (Fostex 166ENs in a BIB)...
Reolink RLC-812A 4K Smart PoE Camera with Color Night ...
https://www.123securityproducts.com/rlc-812a.html
Reolink RLC-812A combines Smart Person/Vehicle Detection with Ultra HD Surveillance. 4k Resolution with 2 Way audio. Smarter Detection & Superior Protection. RLC-812A is a smart PoE camera that can distinguish person and vehicle from other objects. False alarms on trivial objects’ movements are greatly reduced to make your life easier.
ADDAC ADDAC812A LED Audio Meter - Perfect Circuit
https://www.perfectcircuit.com/addac-812a.html
ADDAC ADDAC812A. The ADDAC812A LED Audio Meter is a great way to monitor audio signals in your eurorack system. Two inputs feed the LED-based volt meter that indicates the level from 0.2V to 10V. Signals between 0.2V and 4V are in the green, 5V to 8V are in the yellow, and 10V are in the red, indicating peaking.
812A Hammond Manufacturing | Mouser
https://www.mouser.com/ProductDetail/Hammond-Manufacturing/812A?qs=y6ZabgHbY%252BxTnfpQGQC9EQ%3D%3D
812A Hammond Manufacturing Audio Transformers / Signal Transformers LINE/150OHM MIC-GRID 125/500 10K/40K datasheet, inventory, & pricing.
SVETLANA TECHNICAL DATA 812A Medium-Mu Power …
https://frank.pocnet.net/sheets/164/8/812Aspec.pdf
the plate cap. The Svetlana 812A may be used as an AF power amplifier, modulator or RF amplifier at full ratings to 30MHz and reduced ratings to 100MHz. The Svetlana 812A is designed to be a direct replacement for any 812A now in service. 812A Medium-Mu Power Triode Electrical Filament: Thoriated-tungsten Voltage (AC or DC) 6.3 ± 0.3 V Current 4A
812A Vacuum Tube - Spare / SOLD ONLY AT TIME OF …
https://www.frequencystore.com/product-page/812a-vacuum-tube
Spare 812A Electron Vacuum tube sold ONLY with purchase of M.O.P.A. amplifier:We require that our international customers purchase a spare vacuum tube (812A) at the time of their M.O.P.A. amplifier order. One 812A vacuum tube is included with the M.O.P.A. amplifier, however, it's a good idea to have a spare on hand if you're involved with a research protocol and cannot afford …
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