The last time I used it as a microphone amplifier, it was working. It comes with the original power supply.
eBay
Nobsound High Precision Passive Preamp Volume Controller HiFi Pre-Amplifiers Match Power Amplifiers Or Active Speakers
Aliexpress UK
MAIN FUNCTIONS: MM turntable phono preamp is used to convert the phono signal into line level signal, can be used for phonograph and record player. INPUT AND OUTPUT INTERFACES: Phono preamp features 2 Composite Video Interface inputs(left and right) and 2 Composite Video Interface outputs(left and right), making connection simple and convenient.
eBay
MM/MC Switchable vinyl CD record player Pre-amplifier / Based On Dual NE5532 op amp Phono Preamplifier
Aliexpress UK
BT26, and is manufactured for B-Tech International of Northampton, England. The microphone inputs [L & R] are each to ¼ jack sockets and the phono inputs [L & R] each to RCA phono sockets. The left and right hand outputs are taken from RCA phono sockets on the back of the casing.
eBay
Douk Audio T3 Plus Mini Vacuum Tube Preamp MM / MC Phono Stage for Turntables Pre-Amplifier Desktop Headphone Amp
Aliexpress UK
1 Headphone preamplifier. Converts phono signal to line level signal. Ultra-low audio performance for superior sound quality. Input: 110-240 V 50/60Hz. 1 Power Adapter. Output: 12 V 500mA. Power adapter: US plug.
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200W+200W High Power Fever Hifi Tube Amplifier Pre-stage Auido Speaker Amplifier Home Theater Bluetooth 5.0 Support 48KΩ Speaker
Aliexpress UK
Phonograph Preamplifier Preamp Power Amplifier Board. MM MC Phono Vinyl Record Player Turntable. Switching short-circuit cap setting instructions: one short-circuit cap for one channel. The magnification is high.
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2.4GHZ RF Amplifier Radio Amplifier RF2126 RF Power Amplifier 400‑2700MHz 2.4GHZ 1W Amplifier with Heatsink RF Power Amplifier
Aliexpress UK
Convert Signal: Use the phono turntable preamp to convert phono signals to line level signals, easily convert records to digital sound files, providing excellent sound quality. Compact size and portable, easy to integrate into any setup.
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HA800 8 Channel Headphone amplifier Audio Stereo Amp Microamp Amplifier for Music Mixer Recording Ultra-Compact Sound amplifier
Aliexpress UK
Convert Signal: Use the phono turntable preamp to convert phono signals to line level signals, easily convert records to digital sound files, providing excellent sound quality. Compact size and portable, easy to integrate into any setup.
eBay
ST-838 Home Theater Amplifiers HiFi 2.1 Channel Power Amplifier Stereo Bass Sound Car Home Amp Media Player Subwoofer Amplifier
Aliexpress UK
FUNCTIONS AND EFFECTS: The stereo phonograph preamplifier enables trusted sound signal transmit among sound devices and can be used for turntable and record players. FIVE PIN XLR INPUT OUTPUT: Adjustable phono preamp can balance the connection of microphones and line level devices(such as mixing consoles, sound interfaces, etc.), effectively reducing electromagnetic interference, transmitting quality sound signals, and ensuring clear and stable sound.
eBay
AK45/AK35 Power Amplifier HiFi Stereo Amplifier Channel 2.0 Max Power 90Wx2 Bluetooth AMP for Home Theater Car Amp D Audio Power
Aliexpress UK