Tube Amp Building - Tweaks

	Subject / Started by	Replies / Views	Last post
0 Members and 52 Guests are viewing this board.
	anyone every use a 6AH4 GT as a driver in a se amp? Started by ALBATROS1234	8 Replies 6532 Views	December 08, 2019, 07:58:46 pm by kagliostro
	Voltage Multiplier & Heater Power Supply - Question Started by kagliostro	14 Replies 9508 Views	December 07, 2019, 06:25:33 pm by jjasilli
	Gauge wire on PT Started by dude	6 Replies 4125 Views	December 06, 2019, 07:42:39 pm by dude
	Quick Tremor-lator Question Started by yorgle	2 Replies 3982 Views	December 06, 2019, 01:41:44 pm by yorgle
	Add adjustable bias to Hiwatt DR504 Started by eahudimac	4 Replies 7514 Views	December 06, 2019, 10:23:39 am by eahudimac
	Tube reverb project Started by Colas LeGrippa	24 Replies 9690 Views	December 05, 2019, 09:52:52 pm by sluckey
	Lead on cap can smoking and sizzling Started by dude	4 Replies 5030 Views	December 04, 2019, 09:52:23 pm by dude
	3 channel preamp hum issues Started by Captain chunkulus « 1 2 3 »	114 Replies 41719 Views	December 04, 2019, 01:56:43 pm by Captain chunkulus
	Red-Nek Circuity PortaBuzz B-15 Started by bnwitt	4 Replies 4091 Views	December 04, 2019, 01:38:52 pm by RWood
	Vox AC-15 build reverb question Started by shaun	10 Replies 6660 Views	December 04, 2019, 01:16:05 pm by shaun
	Soldering on eyelet board - is there a recommended way? Started by Tbone55	9 Replies 9753 Views	December 04, 2019, 11:38:21 am by kagliostro
	Trynig to find a schematic for a MarCH amp. Started by 1blueheron	2 Replies 4281 Views	December 03, 2019, 11:16:45 pm by 1blueheron
	Lacing turret board and RF interference Started by mebond11	2 Replies 3822 Views	December 03, 2019, 08:02:08 pm by mebond11
	Hoffman AB763 weak tremolo with 6L6GC's Started by sam	26 Replies 11570 Views	December 03, 2019, 05:26:59 pm by sam
	power reduction Started by isaac_teller	2 Replies 3538 Views	December 03, 2019, 10:56:21 am by isaac_teller
	Resistor wattage available Started by dude	8 Replies 5224 Views	December 02, 2019, 08:40:03 pm by PRR
	1990 red knob fender Twin Started by nandrewjackson	6 Replies 6543 Views	December 02, 2019, 07:49:32 pm by nandrewjackson
	Active FX loop for master volume? Started by Big_Mike	10 Replies 7002 Views	December 02, 2019, 11:21:17 am by pdf64
	question about my large mystery power transformer Started by Hebert	11 Replies 6166 Views	December 02, 2019, 08:35:29 am by sluckey
	Vox AC15 Tweed Deluxe hybrid w/ reverb schematic Started by Opry Audio « 1 2 »	63 Replies 25973 Views	December 02, 2019, 01:07:11 am by Greg
	2-ch hybryd ODS/ax84 P1/Superlite 18W Started by adamG	36 Replies 15860 Views	November 28, 2019, 01:15:04 pm by shooter
	Attitube G20 Started by big-ez	10 Replies 8147 Views	November 28, 2019, 10:27:20 am by shooter
	Supro 88T Schematic / Power Xfmr Specs Started by paulcblais	5 Replies 5413 Views	November 27, 2019, 07:31:07 pm by DummyLoad
	Davoli Krundaal amp very old question refurbished - ELL80 tube substitutes Started by kagliostro	25 Replies 13666 Views	November 26, 2019, 06:26:49 pm by kagliostro
	AO-43 Conversion schematic needed Started by shaun	22 Replies 12435 Views	November 26, 2019, 04:32:41 pm by jojokeo
	Voltage Doublers......... Started by Jack_Hester	20 Replies 12629 Views	November 26, 2019, 03:04:05 pm by GEO62
	DSL - Master Volume Mod.. Buzz/Hum Started by diddymix	11 Replies 6794 Views	November 26, 2019, 02:10:35 pm by jojokeo
	'74 Twin Reverb Buzzing Started by ChubeRules	3 Replies 4048 Views	November 26, 2019, 03:47:08 am by pdf64
	Hammond AO-44 OT ohm range? Started by MWaldorf	4 Replies 3826 Views	November 25, 2019, 02:04:01 pm by MWaldorf
	Hoffman 6v6 Started by Rockranger	11 Replies 6720 Views	November 25, 2019, 01:09:32 pm by Rockranger
	Hoffman amps closing the month of December Started by EL34	1 Replies 3835 Views	November 25, 2019, 06:25:40 am by EL34
	Power transformer ratings Started by Leevi	3 Replies 4071 Views	November 25, 2019, 06:00:14 am by kagliostro
	CHOKE Question for Blues Junior, Hoffman conversion Started by BobSmith	1 Replies 3768 Views	November 24, 2019, 02:21:21 pm by sluckey
	Pro Junior - Hand Wired Mod Difficulty Started by specialk13	12 Replies 8830 Views	November 24, 2019, 01:58:28 pm by specialk13
	Another �quick� grounding question😀 Started by daveyajd	2 Replies 3629 Views	November 24, 2019, 12:14:18 pm by daveyajd
	QQ about possible transformer ring Started by munkeyboy	5 Replies 4382 Views	November 24, 2019, 10:54:35 am by munkeyboy
	Re-start? Started by stratavox	5 Replies 4397 Views	November 23, 2019, 05:49:53 pm by DummyLoad
	peavey 6505+ repair need some help Started by nonoxxx	13 Replies 6832 Views	November 23, 2019, 03:22:07 pm by nonoxxx
	Silvertone 1344-a gut shot Started by munkeyboy « 1 2 »	53 Replies 21114 Views	November 23, 2019, 01:15:38 am by munkeyboy
	Trouble with new build... Bassman style Started by Fiat_cc	15 Replies 7391 Views	November 21, 2019, 03:52:24 pm by Fiat_cc
	Hammond marked EL84�s Started by dude	22 Replies 8373 Views	November 21, 2019, 01:56:46 pm by shooter
	2550x Troubleshooting Started by joe14vf	5 Replies 4142 Views	November 21, 2019, 04:25:58 am by joe14vf
	JCM800 Cathode Follower and Vhk ratings Started by ECV02	10 Replies 6679 Views	November 20, 2019, 12:11:31 pm by pdf64
	Twin Reverb Distortion Started by JKRamsey1991	4 Replies 3975 Views	November 20, 2019, 11:38:13 am by pdf64
	Heater Considerations for new build Started by Opry Audio	23 Replies 8184 Views	November 20, 2019, 08:28:49 am by shooter
	6B4G dedicated heater winding... Started by Greg	15 Replies 8692 Views	November 19, 2019, 08:18:32 am by Greg
	OT Input Impedance Question 5F2A build Started by AHeck	12 Replies 7462 Views	November 18, 2019, 03:10:41 pm by PRR
	Hoffman AB763 troubles Started by gheorge77	13 Replies 5478 Views	November 18, 2019, 08:05:58 am by gheorge77
	Dr. Z Maz 38 issue Started by theundeadelvis	9 Replies 5164 Views	November 17, 2019, 12:45:18 pm by theundeadelvis
	Gremlins Started by fossilshark	3 Replies 3995 Views	November 15, 2019, 09:25:40 pm by fossilshark

Welcome To the Hoffman Amplifiers Forum August 29, 2026, 04:02:40 pm

Welcome, Guest. Please login or register. -User Name -Password
Home Help Search Login Register
Hoffman Amplifiers Tube Amplifier Forum » Amp Stuff » Tube Amp Building - Tweaks - Repairs

Choose a link from the Hoffman Amplifiers parts catalog
Mobile Device Catalog Link	Yard Sale Discontinued	Misc. Hardware
What's New	Board Building Parts	Amp trim Handles
Lamps Diodes	Hoffman Turret Boards	Channel Switching
Resistors	Fender Eyelet Boards	Screws/Nuts Washers
Jacks/Plugs Connectors	Misc Eyelet Boards	Tools
Capacitors	Custom Boards	Tubes Valves
Pots Knobs	Fuses/Cords	Chassis
Tube Sockets	Switches	Wire Cable

Welcome To the Hoffman Amplifiers Forum