Retro King
Articles about Retro King:
Retro-King has introduced the Plexi 50, a replica of the 1960’s 50 watt plexi with a solid state rectifier.
It uses two EL-34 output tubes and a heyboer 50 watt plexi output transformer. The filtering consists of a double 50mf cap and a double 32mf cap. Unlike the 45, which uses a shared cathode, the 50 watt uses a separate cathode arrangement on the first tube, which adds pre-amp gain. A .68 bypass cap on the second stage 33k slope resistor and 500pf cap gives that classic British midrange crunch of the original. The output tranny has the correct 3.4k primary plate load. Read more…
Retro-King has introduced the Plexi 45, a replica of the mid 60’s JTM 45 amplifier. This amp is hand-wired point-to-point on a vintage style turret board and is built to the exact specs of the original (Retro-King adds a 100 pico cap across the normal volume for added clarity).
The output tranny is built for Retro-King by heyboer with the 6.6k primary plate load which is optimal for the kt-66 power tubes. As in the originals, the filtering in the first cap is a double 32mf cap and the second is a double 16mf cap. This amp uses the early “plexi” tone control values along with the standard preamp values. You can also order this amp with the optional negative feedback control adjustable from the stock 27k to 47k. This will give an increase in gain. The Plexi 45 is also available in a 2×12 combo.
Retro-King has introduced the 18-Watt Combo, the latest addition to its collection of hand-wired custom amps.
A class AB cathode biased amp, the “18 Watt Combo” is a replica of the hard to find, 1966 Marshall 18 watt lead combo amplifier with two channels (4 inputs) with a tremolo unit operating on channel two.
Retro-King Amps are hand built by Chuck Dean, a guitar player for most of his life who has owned most of the best amps made during the 50’s and 60’s. Chuck builds these amps with the same quality and tone as you would expect from these great amps, at a fraction of the cost of the originals.




