Custom DHC
directly heated cathode
Guitar Amp





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The Custom DHC is a directly heated cathode guitar amplifier with DHT triode and DHP pentode tubes.

Directly heated tubes were standard before World War II and are treasured for their distinct sound qualities
with exceptional transparency, detail, frequency range, linearity and low distortion.

Each amp is custom handmade to the player's desired options:
Single-ended or push-pull, various preawar preamp and power tubes, with or without EQ, low or high gain, Reverb, Tremolo, Vibrato and more.





Handwired point to point terminal wiring

Prewar directly heated cathode tubes

12 Watt single-ended or 30 Watt push-pull

Custom features

Unique no-compromise Custom Transformers
by Mercury Magnetics

Highest quality NOS components






The amp presented here was custom made by special request for a guitar player in New Zealand with deep insights
into the history of vacuum tubes and vintage guitar and studio gear.
It is a 1x12 combo with direct-heated-triode preamp and direct-heated-pentode power tubes and Mercury Vapor rectifier - all prewar tubes.

The speaker is a vintage Vox Bulldog with original cone from 1970.

It has no EQ and comes with the legendary mid 1970s Laney Klipp overdrive circuit with even-order harmonic clipping.

Both Echo and Reverb effects are created by the magical TEL-RAY Oil Can Echo and Vibrato units from 1968.





Class A single-ended, 12 Watts
Self-biasing output stage
Mercury Vapor Tube Rectifier
Direct-heated-pentode power tube
Direct-heated-triode preamp tubes
Series FX loop
Klipp/Echo/Vibrato Remote F/S
Vibrato Fast/Slow F/S
Paper/oil Filter and Tone capacitors
Point to point terminal cloth wiring
Aluminum chassis 12 ga.

100,120,220,240VAC 50/60Hz
Handmade in USA

Available as Head cabinet, Chassis only or Combo
















Sound Samples:

I upgraded a large diaphragm condenser tube mic with a Micro Tube, Neumann U47 replacement capsule and Jensen transformer plugged into the Simplex Mic Pre



Guitar: Celtic Tele


Clean - various pickup selections

Echo - various Echo knob settings

Vibrato - various speed settings

Klipp - increasing Klipp gain settings

Mixed FX - various FX selections




Guitar: Suspense


Mixed FX - various pickup and FX selections




Guitar: Electric Archtop


Mixed FX - various pickup and FX selections





For a price quote, email your preferred specs and options to Chris@SiegmundGuitars.com