Yarland FV 34CIII - diyAudio
Go Back   Home > Forums > Amplifiers > Tubes / Valves

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

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 20th January 2010, 12:14 PM   #1
diyAudio Member
 
Join Date: Jan 2010
Default Yarland FV 34CIII

Hello

My name is Micke and I am a dealer of Yarland amps here in Sweden!
I have built a couple of speakers in my life and now I would like to modify the small Yarland amp. My thoughts are;

I have been contacted by JB Capacitors China about their new and best capacitor "JFX" and they asked if I wanted to sell/distribute them here.
I want to replace the Claritycap insida the amp with JFX to see what may change in sound. Also, I would like to build an alu/steel front instead of wooden. The small steelplate where the tubes at I would like to change, also (cause of the fun of it) I would like to put the on/off on the rear and terminals (Both lines and speakers) to WBT. Also spike feet instead of the plastic/rubber feet


Any thoughts?



Micke - Just Audio Magic
www.justaudiomagic.se
(Swedish site)
  Reply With Quote
Old 20th January 2010, 02:14 PM   #2
diyAudio Member
 
Join Date: Jan 2010
My thought are to rebuild the hole "chassi" for the small amp - All in steel/alu, all buttons will be selfmade
  Reply With Quote
Old 20th January 2010, 08:48 PM   #3
diyAudio Member
 
Join Date: Nov 2007
The FV34C111 shares the same chassis and decorative parts with the Meng Yue Mini that I have. I think the internal design and tubes are the same too (6N2/6P1 tubes). If you could post a pic of the underside with the cover removed I could compare.
The wooden front piece is just a screw-on over the plain black chassis, and the shiny plate under the tubes is a dummy piece that is glued on. Both can be removed without affecting the function of the amp. Spiked feet are also easy to do, because the bottom plate on the chassis unscrews as do the feet. IMO, the power switch would definitely be better off on the back, as it is very close to the low level signal areas of the amp as it is.
I recommend some ventilation of the transformer cover as well, or a complete redesign using stainless steel mesh. Mind you the transformers themselves are not pretty enough to be visible.
The main coupling caps in my amp PCB are Class X2 MKP. Not bad quality from what I have read, so I would be interested in the results if you replace them.
If the circuit design is the same as my Mini, then there are other areas that need improvement before coupling capacitors (see my thread here: Meng Yue Mini schematic?
The little amp has improved dramatically during the course of that thread, and is still undergoing changes.
If I keep mine, I will eventually remove the PCB and point-wire the whole thing.

Gary
  Reply With Quote
Old 20th January 2010, 10:43 PM   #4
diyAudio Member
 
Join Date: Jan 2010
My new thoughts are to replace the hole chassi with a new one!
The new chassi will be homemade with milling etc

Steel/alu - 3 mm bottom and topp, 6-8 mm front, back and sides


  Reply With Quote

Reply


Hide 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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Converting Yarland FV-34AIII to Triode and Zero NF jolon Tubes / Valves 4 11th January 2012 05:11 PM
Yarland 34 ciii amp arvin Tubes / Valves 21 7th May 2010 02:04 PM
Yarland 34A - Crunch sound, now not the same, any ideas? jolon Tubes / Valves 8 27th December 2009 11:40 PM
Converting a yarland amp to drive headphones arvin Tubes / Valves 0 27th February 2007 02:29 PM


New To Site? Need Help?

All times are GMT. The time now is 06:34 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2