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1pair Accuphase-E505 5-pair transistor pure post amp 300W+300W HIFI fever level power amplifier board (adjustable class A)
Aliexpress UK
For sale are 3 used Ei tubes. The tubes test good.
eBay
WOOPKER 100W+100W&200W Bluetooth Amplifier Board D600E/D900/D100W BT 5.0 HiFi Audio Amp with TWS Function for Home Car Karaoke
Aliexpress UK
eBay
PSVANE KT88 PLUS Vacuum Tube Amplifier Replaces KT88 KT120 6550 KT90 HIFI Audio Valve Tube Amplifier Matched Quad
Aliexpress UK
No UL tapes, output 35W-40w per channel. Priced to go. Unused new condition. Potted into black steel case.
eBay
TPA3255 HiFi Digital Power Amplifier Board 300W*2 Dual Channel Sound Amp with JRC Preamp Inductor for Home Car Speaker Subwoofer
Aliexpress UK
Based on Blackstar’s patented Dynamic Power Reduction design you can easily switch from 50 Watts for the loudest clean headroom, down to 2 Watts for practising, recording or smaller gigs, or a more overdriven power amp tone.
eBay
1Pcs OPA1612AIDR Audio Operational Amplifier Chip Dual Op Amp OPA1612A SOP8 To DIP8 OPA2604 U
Aliexpress UK
(4) NOS Tesla EL-34 tubes prof essionally tested on a Amplitrex AT1000 tester. Tubes have brown bases, OO getters and welded plates. Based on the test results, all 4 can be considered "As New" and are closely matched. All 4 were stable and reached full current output swiftly, and had no shorts, leaks or appreciable gas. Test results for current and transconductance as a % of spec were as follows: tube 1 - 92% / 114% tube 4 - 86% / 104% tube 7 - 90% / 96% tube 12 - 91% / 99% Applied Test/Plate Screen Voltage was 250/265 volts. Shipping to CONUS only.
eBay
AIYIMA Amplifier Power Adapter 32V 36V 48V Switch Power Supply 5A 6A For TPA3251 TAS5630 TPA3255 Sound AMP EU US AU UK
Aliexpress UK
Upgrade your amp’s tone with thismatched set of four Electro-Harmonix EL34 power tubes. Smooth, rich tone with excellent musicality.
eBay
AIYIMA T9 HiFi Bluetooth 5.0 Vacuum Tube Amplifier USB DAC Stereo Amplificador COAX OPT Home Audio Power Amplifier VU Meter 100W
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
2000W 5.0 bluetooth 2 Channel Audio Power HiFi Amplifier 326BT 12V/220V AV Amp Speaker with Remote Control 4 Micro for Car Home
Aliexpress UK