Detroit Amp Lab

Home
United States
Royal Oak, MI
Detroit Amp Lab

Call Directions Website Contact the business

Dad. Vintage Amps. Tape Echoes. Combo Organ Repair. The Great Lakes. By appointment only.

Tune-ups, Re-tube, biasing, capacitor replacement, transformer replacements, parts replacements/upgrades, "blackfacing" and general maintenance. Specializing in restoring/repairing vintage Fender, Silvertone, Traynor, Ampeg, Marshall, Gretsch, Valco, Vox, Orange, Supro, Premier, Univox, Music Man, Gibson, Kalamazoo, Danelectro, Airline, Hiwatt and Magnatone tube amps (1950-1980). Full modification and component upgrades for Fender Hot Rod/Blues Deville, Deluxes, Juniors.

-ROLAND SPACE ECHO repair and restoration
-ECHOPLEX repair and restoration

Servicing all Combo Organs (Vox, Farfisa, Elka, GEM)

Wurlitzer Electric Piano repair.

11/13/2026

1962 Fender Princeton 6G2A refurbished for Oxford Guitar Supply Replaced a weak preamp tube, replaced the original can capacitor and B+ dropping resistors, replaced bias supply capacitor and bias resistor, replaced one bad Ajax Blue Molded capacitor, replaced all original cathode bypass caps, properly installed a 3 Prong AC cord and cleaned all pots/sockets/jacks. Output tubes biased within spec with a 33k resistor.

11/11/2026

1956 Gibson GA-40 Les Paul Amp repaired for Keith Axtell whose father was the original owner of this beauty. This amp came in having been worked on previously. It had since developed quite a bit of noise related issues, volume dripping out and tremolo not working. First thing, I made sure the tubes tested strong. Then checked all the filter caps. Rebuilt the tremolo circuit, replaced all the cathode bypass caps, cleaned all the sockets/pots/jacks really well. Glad it’s going home healthy and happy.

11/10/2026

1968 Tel-Ray Deluxe Organ Tone Oil Can Delay refurbished for Warren Defever Put alot of hours into getting this one as close to perfect as possible. Replaced all the original electrolytic caps, emptied the old oil and put new UCon LB65 oil in, ran new wire from pickups to amplifier, cleaned the recording disc, oiled the shaft and bearings, installed a new spring on the flywheel, new belt, got rid of a lot of squeaks, set trimpot according. It’s always pretty satisfying to finish one of these.

11/03/2026

1966 Kalamazoo Model Two getting an overhaul for Kenny Tudrick Replaced a dead 6BQ5, weak 12AX7 and all electrolytic caps. The Sprague coupling caps were leaky and replaced with new Mallory’s. New fuse, fuse cap and a 3 prong AC cord. What a solid little ripper!

05/21/2026

1979 Marshall JMP MKII 100W came into the shop after sitting for most of its life packed away it a basement. Two output tubes were missing as well as a preamp tubes. Started by replacing the broken fuse holders. Replaced the original Daly can caps. Replaced the bias supply capacitors. Installed a new quad of EL34s and 1x12AX7. Pretty straightforward repair. Sounds great.

05/20/2026

1951 Valco 1x10. Commonly referred to as a “Chicago 51” as Chicago is the city Valco was located and “51” was the postal code. This came into the shop with a shorted 6V6 and barely passing signal. I installed a new pair of 6V6s, replaced the original can caps with new Hayseed Can Caps, replaced the original wax caps with new Vishays and properly installed a 3 prong AC cord for safety.

05/19/2026

SOLD! 1970s Echoplex EP3 refurbished and restored. Started off by cleaning, demagnetizing and aligning the heads. Replaced original tape cartridge, electrolytic caps, felt, roller, etc. If you own an old Echoplex that has never been serviced, do yourself a favor and send it to me. I’ll take care of it for you.

05/15/2026

1963 Vox AC30/6 serviced and repaired for Replaced the EL84 screen resistors, replaced leaky mustard caps in the vibrato circuit along with several wildly drifted resistors. Installed a 1/4 cable from speaker to backplate. Gave it a massive internal cleaning. It’s always a treat working on old Vox amps. 🇬🇧

05/12/2026

Farfisa Mini Compact overhauled and serviced for Worked tirelessly repairing key contacts, replaced all the original electrolytic capacitors, recapped power supply, tuning, cleaning, cleaning, etc. 🇮🇹

05/07/2026

Address

Royal Oak, MI
48154

Telephone

(734) 306-6716

Website

http://www.detroitamplab.me/

Alerts

Be the first to know and let us send you an email when Detroit Amp Lab posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.