• 6CA7 equivalent.
eBay
Woopker D10-II Audio Amplifier Board Digital Bluetooth AMP Module 30-120W for 4 Ohm Speaker 110V-220V 12V/24V With LED Screen
Aliexpress UK
We are very impressed with the quality of these Genalex KT77 reissues that are manufactured out of Russia. They have a tight and dynamic bass with a nice mid punch. The highs are nice and extended as well.
eBay
Amplifier speaker switcher one in and two out (two in and one out) Two 2 channel stereo audio amplifiers PK or selection
Aliexpress UK
The tube is in very good shape and produces nice warm sound.
eBay
Auto-partner HiFi Audio Amplifier Digital Bluetooth AMP RMS 70W+70W Channel 2.0 Inputs FM Radio AK55
Aliexpress UK
See picture of the genuine TAD Germany logo at the base of the tube.
eBay
Woopker audio amplifier AK55 MAX 900W 2.0 channel HIFI digital Bluetooth amplifier supports dual microphone input RMS70W+70W
Aliexpress UK
Dynaco Mark IV amp. No tubes are included. You will need 2x EL34, 1x 7199 and 1x 5AR4. Amp works and sounds great, it's loud.
eBay
Car Amplifier Wiring Kit 10/8/6/4GA Car Amplifier Cable Set 60Amp Fuse Holder Set Subwoofer Modification Connection Cable Kit
Aliexpress UK
Project #2: "Big Boy", 45-60 Watts push-pull channel-switching amp. This spunk can also use various power tubes without any modifications: 6L6, 5881, 6550, EL34, KT66, KT77, KT88. 45 Watts with a pair of 6L6 and 60 watts with a pair of EL34.
eBay
Nobsound Mini Bluetooth 5.0 TPA3116 Digital Audio Amplifier HiFi Class D Stereo Power Amp 100W*2 for Home Speakers
Aliexpress UK
Power Your Tube Amp with Tung-Sol EL-34Bs Upgrade the sound of your amp with the Tung-Sol EL-34B Platinum Matched Quad power tubes. The same tube you'll find powering the iconic Marshall brand, the EL-34B Platinum Matched Quad tubes offer classic guitar amp tones in a rugged and reliable tube. When you need a tube designed for performance, you'll appreciate what Tung-Sol has brought to the market. Sweetwater knows that your amp's tone and power tubes are important to you, and we're confident the Tung-Sol EL-34B Platinum Matched Quad power tubes will do the job.
eBay
400W X2 TTA1943/TTC5200 Dual Channel Amplifier Board Power Class 2.0 Home Sound Theater Hifi Amplifiers For Passive Speaker
Aliexpress UK
Update: Beautiful tube amplifier(mono) by using 12AX7 drive one pair of 6L6(or KT66/EL34) output about 30w with tube rectification. There are inputs for Mic1/Mic 2 and turntable phono. Original schematics is included for this amplifier.
eBay
TPA3221 Pure Rear Digital Power Amplifier Board 100W+100W Dual Channel Stereo Audio Amp DC 10-30V for Car Home Speaker Subwoofer
Aliexpress UK