From an article in Guitar One from June, 2004: AXES '54
Fender Esquire, '65 Gibson ES-335, '53 Martin D-28, Guild 12-string, James Trussart, Zitlau electric, Zemaitis electric AMPS '50s Fender Vibrolux, Deluxe blonde Tremolux; Harry Joyce heads and cabs; Wizard heads.
And from
http://www.richrobinson.net/gear.php:
1954 FENDER ESQUIRE
1964 GIBSON ES-335
BLONDE TELECASTER
BLACK CUSTOM SHOP TELE DELUXE
BUTTERSCOTCH CUSTOMSHOP TELE WITH B-BENDER
YELLOW CUSTOMSHOP NOCASTER WITH B and G-BENDERS
EARLY 60'S DAN ARMSTRONG WITH TOM HOLMES PICK UP
GIBSON CUSTOMSHOP FLAME TOP (TOM MURPHY)
ZEMATIS CUSTOM GUITAR
ZITLAU ELECTRIC
1929 NATIONAL DUOLIAN
1968 GIBSON GOLDTOP LES PAUL
JAMES TRUSSART (CUSTOM) 2X
JAMES TRUSSART LES PAUL
JAMES TRUSSART TELE
GRETSCH SEMI-HOLLOW
GUILD 12-STRING
1954 MARTIN D-28
1963 MARTIN D-18
HERITAGE MARTIN OMV 28
1970 MARTIN D-21
1964 MARTIN D-28
GIBSON DOVE
DAN ELECTRO BARITONE GUITAR
CUSTOM SHOP P-BASS
TELE BASS
RICKENBACKER BASS
BURNS
BISON BASS
KAY UPRIGHT BASS
SITAR
1944 CHARLIE CHRISTIAN LAP STEEL
1944 CHARLIE CHRISTIAN SEMI ACOUSTIC
FENDER SHOWBUD PEDAL STEEL
BARITONE DULCIMER
STANDARD DULCIMER
AMPS
MID 50'S TWEED FENDER DELUXE 2X
MID 50'S TWEED FENDER TREMOLUX 2X
MID 50'S TWEED FENDER VIBROLUX
MID 50'S TWEED FENDER PRO
MID 50'S TWEED BASSMAN
60'S BLACK FACE SHOWMAN AMP
MATCHLESS CLUBMAN COMBO 3X
60'S GRETSCH COMBO
MATCHLESS CHIEFTAN 120W HEADS 2X
1971 MARSHALL 50W
HARRYJOYCE 50 WATT HEAD 3X
HARRY JOYCE 100 WATT HEAD
HARRY JOYCE CABINET
WIZARD CUSTOM RICH ROBINSON HEADS 2X
BLONDE FACED
FENDER TREMOLUX
ORANGE HEAD 2X
AGUILAR PRE AMP
400 WATT MESA-BOOGIE
AGUILAR 1 15 CABINET
EPIFANI 2 12 CABINET
SVT CABINET
I thought I had read something in the HIWATT forum about his using Harry Joyce amps, but I didn't have time to look anything up until just now.
As far as the thread originator's question...
I was going to recommend a 50 watt amp (or thereabouts) as well, but there are a lot of choices out there. Fender Super Reverb, Fender Bassman, Peavey Classic 50, or even a HIWATT Bulldog 50 (if you can find one).