Preamplifiers

Subject / Started by	Replies / Views	Last post
[BUILD] K13117 (ClassA MicPre by Darius Kubarth / Kubi) Started by [silent:arts] « 1 2 3 »	51 Replies 17609 Views / 12 Likes	February 27, 2019, 08:35:27 PM by hugo
Redd 47 Mic Preamp Started by JBB « 1 2 3 ... 5 »	83 Replies 30478 Views / 38 Likes	February 25, 2019, 06:03:59 AM by ravachol
DIY Noble Pre/DI - complete newb Started by nickwelch	5 Replies 1156 Views / 0 Likes	February 22, 2019, 04:49:56 PM by dmp
RCA 900491-502? Started by burdoto	5 Replies 479 Views / 0 Likes	February 22, 2019, 12:20:59 AM by burdoto
2520 Opamp video comparison - API, SL2520 "Red Dot", SL1731 "Melcore" Started by BluegrassDan	1 Replies 929 Views / 0 Likes	February 15, 2019, 05:18:36 PM by Kingston
4-channel tube pre. Build progress. Started by BluegrassDan « 1 2 »	25 Replies 2454 Views / 0 Likes	February 13, 2019, 09:44:58 AM by rackmonkey
Need a good tech for old Gates Preamps!! Started by JML in NYC	2 Replies 639 Views / 0 Likes	February 03, 2019, 12:40:46 PM by guavatone
Spectra Sonics 101 PCB mic preamp Started by sammy	10 Replies 1757 Views / 0 Likes	February 01, 2019, 12:59:54 PM by L´Andratté
Collins Radio Co. 356A-1 preamp gain mod and rackup Started by EmRR	8 Replies 1745 Views / 0 Likes	January 31, 2019, 03:46:59 PM by skippo
Mindprint Envoice humming while effects turned on? Started by Xilef	5 Replies 658 Views / 0 Likes	January 29, 2019, 10:47:40 AM by Xilef
Triode gain reduction / bias Started by vmanj	6 Replies 646 Views / 0 Likes	January 26, 2019, 06:19:40 AM by abbey road d enfer
neve 1073 presence hum Started by ilfungo	2 Replies 737 Views / 0 Likes	January 11, 2019, 11:49:24 AM by Vintage Audio Projects
Building the Fetboy Thread Started by aviel	6 Replies 1077 Views / 0 Likes	December 23, 2018, 07:31:29 AM by aviel
Behringer t1953 schematic Started by rc	2 Replies 947 Views / 0 Likes	December 20, 2018, 10:52:28 AM by rc
Don Classics NV73 alternate part help needed Started by Tahoebrian5	2 Replies 727 Views / 0 Likes	December 18, 2018, 10:53:26 AM by dmp
runoff Groove umble build Started by alexc	8 Replies 1081 Views / 0 Likes	December 18, 2018, 01:04:57 AM by alexc
V672 universal amplifier Started by andow	15 Replies 2037 Views / 0 Likes	December 17, 2018, 08:52:42 PM by sideman
Anyone modded the JLM Baby Animal pres to run on a dual rail Power Supply? Started by dysenterygary	3 Replies 826 Views / 0 Likes	December 14, 2018, 05:42:13 PM by dysenterygary
looking for recommendations: preamp a perfboard - EDIT: FETBOY Started by aviel « 1 2 »	32 Replies 2355 Views / 0 Likes	December 11, 2018, 05:39:42 PM by aviel
Akai/Roberts M8 modded preamp - request for assistance by non diy-savvy person! Started by looebloke	6 Replies 1643 Views / 0 Likes	December 06, 2018, 12:39:36 PM by dirty1_1garry
Does anyone recognise this PCB? Looking for info Started by skeptic12	5 Replies 709 Views / 0 Likes	December 04, 2018, 02:40:48 PM by dmp
1073 DIY - PCBs / self etch files / transistor selection? Started by haselnusse « 1 2 »	20 Replies 3264 Views / 0 Likes	November 29, 2018, 06:16:22 PM by Rob Flinn
[BUILD] Tr1dent A range PCB support thread Started by Grand Master Audio « 1 2 3 ... 7 »	121 Replies 26599 Views / 16 Likes	November 29, 2018, 06:02:25 PM by Catface
neve 1073 + 660 combo Started by ilfungo	6 Replies 759 Views / 0 Likes	November 29, 2018, 03:58:48 PM by ilfungo
Power Transformer RCA BA-2C Started by roustabout	10 Replies 1011 Views / 0 Likes	November 28, 2018, 04:49:31 PM by My3gger
Chameleon Blackface 581 problem Started by noiro	2 Replies 767 Views / 0 Likes	November 26, 2018, 03:29:11 PM by noiro
Api Clone Started by Rohan white	8 Replies 1258 Views / 0 Likes	November 18, 2018, 07:00:33 AM by Rohan white
Green Mic Pre Started by Aharon « 1 2 »	30 Replies 10994 Views / 0 Likes	November 12, 2018, 10:10:06 PM by scott2000
TL Audio PA2 Started by rc	3 Replies 973 Views / 0 Likes	November 10, 2018, 06:19:26 PM by scott2000
Redd 47 Dual - Tube Preamplifier Started by JBB	8 Replies 2737 Views / 0 Likes	November 09, 2018, 09:00:08 AM by Marcedona
Help with simple 2 Ch Mic preamp with Mix, 9V Battery Started by iefes	7 Replies 900 Views / 0 Likes	November 07, 2018, 04:12:22 AM by iefes
Larry Comara Fat Box Started by muffy1975	6 Replies 2186 Views / 0 Likes	October 29, 2018, 03:48:32 AM by MrG
switching 10468 transformer as line input Started by Dimitree	5 Replies 1264 Views / 0 Likes	October 24, 2018, 06:16:05 PM by moamps
Gates M5381A Studioette program amps racking up Started by beatnik	3 Replies 1616 Views / 0 Likes	October 19, 2018, 02:07:49 PM by beatnik
First build- fivefish SC1 or DIYRE CP5? Started by aviel	0 Replies 661 Views / 0 Likes	October 04, 2018, 03:54:43 AM by aviel
Great River MP-2 , info, schematics & discussions Started by okgb « 1 2 3 ... 40 »	799 Replies 195960 Views / 36 Likes	October 03, 2018, 06:06:55 PM by bxt403
recommendations for bo hansen Di (4 channel) in rack? Started by leadpoisoning	3 Replies 1192 Views / 0 Likes	September 25, 2018, 02:00:35 AM by leadpoisoning
Gates 5215A Preamp help Started by pH	9 Replies 1368 Views / 0 Likes	September 24, 2018, 07:43:54 PM by pH
DIY Dual Channel Pre with AD/DA Conversion Started by nano1981	2 Replies 966 Views / 0 Likes	September 21, 2018, 12:16:06 PM by BluegrassDan
Akai M7 into two REDD 47 Started by jusmu	4 Replies 1578 Views / 0 Likes	September 17, 2018, 02:41:20 PM by lestatdog