Pr-27 Preamplifier, in Beccles, Suffolk

Hifonics HFEQ-2 Universal Pre Amp Car Radio Equalizer with Mount Hardware, Black, 1 Piece - Harris Teeter

GRAS 26CF 1/2'' CCP Preamplifier with BNC Connector, Gain and Filters

FIR ELETTROMECCANICA Single Phase Pump Type 5222u1569 for sale online

Can you help me figure out which MEC preamp this is? And what the controls are?

NAGRA PL-L, Class-A Tube, Linestage Preamplifier – Holt Hill Audio

Warwick / MEC 2-band preamp (BEC-II)

Microphone Preamps - New & Used Mic Preamps For Sale

Rega amplifier for Sale

UHF Satcom Preamplifier (LNA) and Filter

Hifonics HFEQ-2 Universal Pre Amp Car Radio Equalizer with Mount Hardware, Black, 1 Piece - Harris Teeter

Class A Tube Preamplifier - Firebird

NAGRA PL-L, Class-A Tube, Linestage Preamplifier – Holt Hill Audio

1967 LOMO UP-27 Vintage Tube Microphone Preamp [Very Rare] Made in the USSR

NAGRA PL-L, Class-A Tube, Linestage Preamplifier – Holt Hill Audio

Beaver-Visitec International 581280 - McKesson Medical-Surgical