The only thing I did was open the amplifier and clean the input board because the input channel selector wasn't working properly. I cleaned the outside a bit but it still needs to be cleaned both outside and inside.
eBay
AIYIMA 1 Pair GE 5654W Vacuum Tubes Valve Vacuum Electronic Tube Upgrade For 6J1 6m1 6AK5 6J1P EF95 Pairing Audio Amplifiers
Aliexpress UK
Used condition In very good overall condition Full working order Good inputs - no phono stage will need a separate preamp box Excellent quality great sound Please check out my listing for more vintage hifi
eBay
Digital Audio Power Amplifier Professional 4 Channel 4x1650w Subwoofer Preamplifier DJ Line Array Speaker Stereo Sound Amplifier
Aliexpress UK
This is a fantastic sounding amplifier. It handles everything I throw at with ease and superb accurate reproduction. I've owned very expensive kit and this amp is comparable to high end kit like Luxman and old skool Harman Kardon.
eBay
Aux 3-4 Logic Level Function Amplifier Board for 21MTC Decoders/LaisDcc
Aliexpress UK
UNIT IS IN USED CONDITION. TESTED & WORKING. ORIGINAL REMOTE INCLUDED. EXCELLENT HIGH QUALITY UNIT. AMAZING SOUND. GOOD WORKING ORDER. COSMETICALLY SOME RUBS / LIGHT SIGNS OF USE / WEAR. CONSULT PHOTOS FOR EXACT ITEM YOU WILL RECEIVE. TESTED & WORKING. USED CONDITION.
eBay
DD ddHiFi TC35Pro 2nd Gen Mountain2 (M2), Compact T-Shaped 3.5mm Stereo USB DAC Dongle, Dedicated Chips for DAC and Amplifier
Aliexpress UK
A powerful and well regarded Class AA VC4 amplifier with a wide range of inputs and classic Technics build quality. All functions operate as they should and it sounds excellent. • VC4 advanced circuitry.
eBay
Woopker AK390 BT 5.0 HiFi Power Amplifier 400Wx2 Stereo Digital AMP BASS Media Player Supports FM Radio AUX Microphone Input
Aliexpress UK
In very nice condition- very little sign of use & perfect working order - low usage. Cracking amplifier well looked after in a smoke and pet free home. With original packing/ manual / remote / cable. Please feel free to ask any questions
eBay
TOPPING A70 Pro Fully Balanced Headphone Amplifier 17000mW*2 Relay Volume Control Pre Amp wiht Remote Control
Aliexpress UK
The Pioneer SA 9500 Vintage Amplifier is a fully working integrated amplifier unit in overall good condition. With audio inputs for phono/turntable, aux, and stereo L/R RCA, this amp offers 2 channels of powerful sound. I think it’s 80+80 watts per channel The sleek silver design, along with its 4 audio outputs and AB amplifier class, make it a sought-after piece for audiophiles looking to enhance their vintage audio setup. Perfect for those who appreciate the quality and craftsmanship of classic Pioneer audio equipment. Sounds amazing overall very tidy please look properly at the pics to assure the condition is what you want u k auction only pickup only due to condition size and weight can demo if required whilst your here please look at my other hifi for sale thanks Johnny
eBay
Nobsound A3 HiFi Bluetooth 5.0 Receiver Tube Amplifier USB Player Digital COAX / OPT Stereo Power Amp 35W×2 Headphone Amp
Aliexpress UK
With a sleek black design, this amplifier features two channels for stereo sound reproduction. It includes phono inputs for connecting turntables, as well as a headphone jack and preamp output for added flexibility.
eBay
Nobsound Latest Mini 100W Subwoofer / Full Frequency Power Amplifier Mono Channel Audio TPA3116D2 Amp
Aliexpress UK