which kit to build - first kit ever - 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 22nd May 2009, 10:08 PM   #1
Salsero is offline Salsero  United States
diyAudio Member
 
Join Date: May 2003
Location: Texas USA
Default which kit to build - first kit ever

I am considering building a tube amp after having great results with my first set of DIY speakers. Here are my choices:
1. Dynaco ST35 kit - well documented amp.
2. 16ls with upgraded transformers and caps.
3. KT77 from diyaudioprojects.
I am planning to use Sowter TVC as a preamp. I will also place the power supply in a separate enclosure, perhaps set up dual power supplies.
Pleas comment, better to learn through some one elses experience.
Thanks
Salsero
  Reply With Quote
Old 22nd May 2009, 10:30 PM   #2
chrish is online now chrish  Australia
diyAudio Member
 
chrish's Avatar
 
Join Date: Oct 2003
Location: Sydney
If you let is know what set of speakers you built, we then have an idea of the required power. That will help determine a design...
  Reply With Quote
Old 22nd May 2009, 10:39 PM   #3
Salsero is offline Salsero  United States
diyAudio Member
 
Join Date: May 2003
Location: Texas USA
Default speakers for amp

I have two sets of speakers. B&W CDM7se and a DIY TriTrix - my most recent adventure. I wish I would have gone into DIY sooner.
  Reply With Quote
Old 22nd May 2009, 10:53 PM   #4
chrish is online now chrish  Australia
diyAudio Member
 
chrish's Avatar
 
Join Date: Oct 2003
Location: Sydney
OK, what we need to know is how efficient the speakers are to determine how much power is required to drive them.
  Reply With Quote
Old 22nd May 2009, 11:03 PM   #5
Salsero is offline Salsero  United States
diyAudio Member
 
Join Date: May 2003
Location: Texas USA
They are 90db/w/m+ (less than 93 db for sure), it does not take much to move them. The implementation of a TVC is to make use of the initial low wattage since TVCs are supposed to bring the volume up evenly.
  Reply With Quote
Old 23rd May 2009, 12:36 AM   #6
Salsero is offline Salsero  United States
diyAudio Member
 
Join Date: May 2003
Location: Texas USA
forgot to state, my speakers impedance is 8ohms.
  Reply With Quote
Old 23rd May 2009, 03:43 AM   #7
chrish is online now chrish  Australia
diyAudio Member
 
chrish's Avatar
 
Join Date: Oct 2003
Location: Sydney
That is good news about the speaker sensitivity, It opens up lots of possibilities. I have speakers around 92dB and I am currently using a Tubelab Simple SE. There have been lots of builds of this amp, so a great deal of support from both the designer (www.tubelab.com) and from forum members. Not too sure how long you want to wait, but there is also a Simple PP in the pipeline too.
  Reply With Quote
Old 24th May 2009, 04:50 AM   #8
diyAudio Member
 
Join Date: Jan 2009
A couple of observations which might be of interest...


The K16LS is very much a bare bones kit, albeit a great learning package. I have built two, one with the 'preamp' 5670 triode option, and the other with the tone control option. Both sound very good for the money, but really only after replacing the original OPT's - on one set with redundant chinese iron from an upgraded Amplifier, and on the other with Hammond 1645's.

To use the amplifier in a domestic setting also requires a dedicated chassis, plus all the associated bits and pieces - phono sockets, speaker binding posts, mains and fuse connectors etc. Cost starts to add up.... Need to plan where to put the support screws, drill holes etc, etc - more hassle...

For a first time project I would seriously contemplate spending a bit more and going for a complete package - components, chassis, the works. I have recently built a fabulous ST-70 kit ( from Triode electronics, but there are a number of other vendors). Very, very good indeed - $700 well spent. I don't know how good the ST-35 you mention is, but the ST-70 rocks ! And all the bits actually fit together (say no more).

My two cents...
  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
I want to try and build my own DAC gareth Digital Line Level 3 3rd July 2009 03:20 PM
ZV9 build ingi Pass Labs 8 6th August 2006 02:40 PM
build my first full ranger,let's build another one:a small fullrange high end pc-spea then_dude Full Range 2 30th November 2005 07:54 AM
Do i need to build main supply (240v) filter?Or build power distribution? thomgun_lc Chip Amps 9 16th September 2005 09:52 AM


New To Site? Need Help?

All times are GMT. The time now is 12:28 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