Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

EAR the preamp
EAR the preamp
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 17th April 2019, 02:54 PM   #11
huggygood is offline huggygood  France
diyAudio Member
 
Join Date: Mar 2011
Location: france (bretagne)
from here, it's an EAR 802, if it helps.
  Reply With Quote
Old 17th April 2019, 04:51 PM   #12
kstagger is offline kstagger  United States
diyAudio Member
 
kstagger's Avatar
 
Join Date: Dec 2003
Location: Grand Rapids
Tube socket and pot / switch cleaning, followed by some new/used and tested tubes would work wonders.

Those blue axial electrolytics look to be made by Ero and may still be available; I used ERO caps that looked exactly the same bodystyle and color for a McIntosh 250 (SS amp) rebuild. I would also replace the radial caps.

edit: or Roederstein caps. Been a few years.

Last edited by kstagger; 17th April 2019 at 04:57 PM.
  Reply With Quote
Old 17th April 2019, 05:03 PM   #13
huggygood is offline huggygood  France
diyAudio Member
 
Join Date: Mar 2011
Location: france (bretagne)
Philips capacitors
  Reply With Quote
Old 17th April 2019, 06:43 PM   #14
brucetassin is offline brucetassin  United States
diyAudio Member
 
Join Date: Dec 2005
Location: Loganville, GA
Hello Reinhard.
Go to analog source and look up my post "wave Form".
I'm having a hard time with this pre amp.
Attached Images
File Type: jpg E-834 phono pre.jpg (119.5 KB, 139 views)
  Reply With Quote
Old 17th April 2019, 06:46 PM   #15
brucetassin is offline brucetassin  United States
diyAudio Member
 
Join Date: Dec 2005
Location: Loganville, GA
Never mind, My amp is an EAR834.
Sorry
  Reply With Quote
Old 18th April 2019, 12:42 AM   #16
avtech23 is offline avtech23  Australia
Certifiably addicted to DIY.
diyAudio Member
 
avtech23's Avatar
 
Join Date: Dec 2017
Location: South 'straya
EAR the preamp
Quote:
Originally Posted by huggygood View Post
from here, it's an EAR 802, if it helps.
The OP's one is the predecessor to the 802. It has 14 tubes versus the 6 in the 802.

Quote:
Originally Posted by kstagger View Post
Tube socket and pot / switch cleaning, followed by some new/used and tested tubes would work wonders.

Those blue axial electrolytics look to be made by Ero and may still be available; I used ERO caps that looked exactly the same bodystyle and color for a McIntosh 250 (SS amp) rebuild. I would also replace the radial caps.

edit: or Roederstein caps. Been a few years.
+1

Hum can be caused by the breakdown of the power supply electrolytic caps - I'd replace those as a minimum.
__________________
The ever growing project list.. :NAP140 Clone, NAD 3020i & 3225PE, JLH1969, TDA2050, Fender 5F2A Princeton, NE5532 Pre, SHPA, B1 Korg. : VSQC Phunk Style, Retro 50W, Filmosound 601. : Apex AX-14, TGM-10, TDA7265, LM4780 (Last in line)...maybe
  Reply With Quote
Old 18th April 2019, 09:04 AM   #17
huggygood is offline huggygood  France
diyAudio Member
 
Join Date: Mar 2011
Location: france (bretagne)
+1
I will not neglect the increase of the mains voltage either.
I had the case with a CJ recently to have the ECC83 had cathode / heater leaks.

Quote:
Originally Posted by avtech23 View Post
The OP's one is the predecessor to the 802. It has 14 tubes versus the 6 in the 802.
thanks for the info .
I sold some as a professional seller several years ago, but I never opened one, it was still "magic boxes" for me at the time.
  Reply With Quote

Reply


EAR the preampHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Viking RP61 tube preamp into Mic preamp? Magnetmaz Instruments and Amps 1 7th April 2015 08:47 PM
Running a tube preamp into a solid state preamp? Pckid212 Solid State 5 6th January 2013 10:12 PM
Tube Preamp Popping on Source Input Change (?) / 6DJ8 Preamp On Chip Amps Travis Clarke Tubes / Valves 3 16th October 2008 04:52 AM
twisted pear Preamp/other suggestions for Preamp kit LukeDuke Chip Amps 1 1st February 2008 09:57 PM
Electret mic preamp - will phono preamp work? darthmullet Analogue Source 6 12th October 2007 07:32 AM


New To Site? Need Help?

All times are GMT. The time now is 02:49 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio
Wiki