Valve tube amplifier repair
There's nothing like the sound of a old school valve amp
to make your guitar sing, however Tube amplifiers need
servicing on a regular basis to ensure that your valves
are correctly balanced and biased.
David Haddock electronic repairs as in more than
35 years experience in working on the circuitry
including Fenders, Marshals, Ampeg, Bad Cat,
Blackstar, Bogner, Egnater, Hiwatt, Laney,
Mesa Boogie, Orange, Peavey, Randall, Soldano,
Vox, Vase & Goldentone.
Over the past thirty years, I have been doing
tube amplifier repair for of musicians and Hi Fi buffs
1) Clean the amp chassis of accumulated dust, cobwebs, dead insects etc.
2) Clean all pots, switches, valve sockets, RCA terminals and speaker terminals
3) Check voltages on Power Supply
4) Connect speakers and slowly power up through the bulb variac.
5) Check voltages on valve pins
6) Balance and bias valves
7) Full 24 hour burn-in
David Haddock electronic repairs is a
valve/tube amplifier specialist and will
give your prized amp the special care
and attention it deserves.
Testing, re-bias and replacement of 12AX7, 12AX7B, EL34B, EL88, EL34, 12AX7, GZ34, 5AR4, 6V6GT, 6BM8, ECL82, 5U4 Valves/Tubes for Marshall, Mesa Boogie, Fender, Ampeg, Orange, Laney, Egnater, Bogner, Bugera, Matchless, Engl, Blackstar, Vox,
Carvin, Dunlop, EVH, DV Mark, Paul Reed Smith, Music Man, Hughes & Kettner.
Vintage Amp Restoration
We love doing Vintage Amp Restoration, amps arrive with damaged and missing original parts and had been left for dead.
We often get repair and restoration request for vintage amps that could sound amazing and we love to see them back to their original condition.
Please contact us if you have a potential amp for restoration or repair.
Ph 0418 714 619
david (at) davidhaddockelectronicrepairs.com.au
44 Station Rd
Bethania QLD 4205