BWS Consulting: Exclusive Vacuum Tube Audio Design

Audio Engineering Services & Home Theater Service

I Repair/Customize Guitar Amplifiers; Fender - Matchless

Call 703-536-3910

Please Review All Directories And Sub-Directories, I Have Affordable Introductory Amplifier Options For Systems.

Please Request Services For Home Theater Systems And Audio Gear With The Contact Forms Menu


Paypal, Check or Money Order Accepted For Payment


Dynaco Amplifier Upgrades

I have been performing upgrades and total redesigns of the St-70 and Mk III, Dyna Company amplifiers, since 1980s when I introduced my first custom products. 

These amplifiers make an excellent base for many redesigns.  This St-70 has been totally redesigned and features the Bendix/Mu 3D21 as the power output tube, a three tube front end-driver section, multiple power supplys and mil spec parts. The Model Amplifier Shown, Is Available For $3800.00 New Build - With A Cage.

I also provide redesigns using the 7236 and 6080B dual triodes, and the original EL-34.

Please fill out a request form or call me at 703-536-3910.