Oct 6, 2022 · I purchased an assembled 6AU6 6AQ5 SE Amp from China. It worked as assembled but was not correct. The PCB was not correct. I had to cut traces, add correct capacitors/resistors for the voltages and rewire correctly the power supply CRC filters. I have questions about the feedback connections circled in red in the attached picture.

Mar 6, 2022 · I'm working on a SE mono amp from a late 50's German suitcase record player. Schematic is attached below. I wanted to get your thoughts on some possible changes below. I'm not necessarily looking for max output power, just best possible sound quality that's able to drive a source of 0.5 volts. I'll be using a 4 ohm speaker. 1.

Nov 30, 2024 · A few years ago I put a little 6AQ5 SE amp together and thought it sounded pretty good. I wound up taking it apart and using the power trany for a SE guitar amp. I noticed in your pictures you had that amp fired up without speakers connected.

Sep 1, 2015 · I'm starting a simple build of a 6AQ5 SE Amp. The schematics are from Tom Bavis. I'm using a small Hammond box and iron from a Webcor r to r. I'm not going to show the full build, just a few pic's along the way. Here's the first. Parts!

Jun 8, 2019 · I've seen schematics for 6AQ5 SE amps, which have a single preamp tube, usually a 12AX7. But if you take a look at the attached pics, you'll see there is a 12AX7 and a 6UA6 in the preamp stage of the Ampro design, which also has a volume pot and a tone pot.

Oct 29, 2015 · I've never played any 6AQ5 amps. However, the tube is exactly the same as a 6V6 except it is in a 9-pin miniature bottle. So any 6V6 design you like will also work with 6AQ5's, with due regard to the pin-out change.

Oct 20, 2013 · Except for getting the 6AQ5 bias right you can use designs for 6V6 or EL84. Eli Dutton has a design and many have gotten good results with variations on the RH84. The "El Cheapo" design Dave referred to is push/pull. If your speakers are efficient enough to work with about 2 WPC, DECWARE SE84 style circuitry is a possibility.

May 25, 2019 · Attached is the schematic for the modified "hybrid" 6AQ5 amp. Via front panel switches I can dial in the FET stage to get some smooth early crunch, or I can switch it out to make the amp valve only for a clean sound. Note that the …

Feb 22, 2011 · 6aq5 se quad stereo amp!! I am looking to build a stereo amp using a quad of 6aq5 jan 6005 tubes per channel se. I couldnt think of a better place to start getting suggestions for this build. I am set at this time with using se topology as I have a real nice sounding ge t-1000 radio using a single 6aq5 per channel.

Dec 2, 2010 · The 6AQ5 is a 12 watt tube with a max of 250V. The datasheet says something along the lines of it having the same characteristics as a 6V6 within its ratings and shows an example of a 5K load with 250V. The speaker measures 3 ohm resistance so I assume it's about a 4 ohm impedance.