Search found 16 matches

by TooL46_2
Tue Jan 08, 2013 2:13 am
Forum: Technical Discussion
Topic: educational
Replies: 11
Views: 2092

Re: educational

I think you can still read the first chapter for free. Just go to Merlin's website.
by TooL46_2
Fri Oct 05, 2012 1:26 am
Forum: Technical Discussion
Topic: Help with hum problem on homebuilt Tiny Terror
Replies: 4
Views: 1267

Re: Help with hum problem on homebuilt Tiny Terror

Make sure all the connections are ok. This amp should be quite loud. Re hum -- is it 50Hz (60Hz)? Or 100Hz (120Hz for US)? There are various reasons in each situation. Many times it's just a ground loop (if the hum has a fundamental frequency of 50/60Hz). This kind of hum can also be introduced by f...
by TooL46_2
Sat Sep 29, 2012 1:38 am
Forum: Technical Discussion
Topic: Bias and standby
Replies: 7
Views: 2768

Re: Bias and standby

I'd do the same. However, this wouldn't work in a situation when you have the Stand-by switch on the CT of HT winding (what I prefer).
by TooL46_2
Sat Sep 22, 2012 8:23 am
Forum: Technical Discussion
Topic: Merlin B's new book on tube amp power supplies
Replies: 20
Views: 5977

Re: Merlin B's new book on tube amp power supplies

Also waiting for the power stage book. Got this one for now

http://www.amazon.com/Vacuum-Tube-Circu ... 0976982242
by TooL46_2
Thu Sep 20, 2012 10:31 pm
Forum: Technical Discussion
Topic: Capacitor Orientation
Replies: 6
Views: 2350

Re: Capacitor Orientation

Thanks to this forum I learnt about this phenomenon! Thank you Guys!

I've allowed myself translating the information to Polish so my friends in Poland could benefit from this knowledge as well!
http://www.trioda.com/forum/viewtopic.php?f=18&t=23539
by TooL46_2
Thu Sep 20, 2012 2:54 am
Forum: Technical Discussion
Topic: Signal shielded wire
Replies: 6
Views: 1816

Re: Signal shielded wire

Thanks Guys,

I found RG-174 in Jaycar (Australian retail supplier of electronic compnents) so will head there this evening to get some ;)
by TooL46_2
Wed Sep 19, 2012 9:20 am
Forum: Technical Discussion
Topic: Signal shielded wire
Replies: 6
Views: 1816

Re: Signal shielded wire

Thanks Aleks! One can always count on you! :)

Apparently Mouser also has Australian page but don't know if they actually ship from Australia. I doubt it to be honest...
by TooL46_2
Wed Sep 19, 2012 2:45 am
Forum: Technical Discussion
Topic: Signal shielded wire
Replies: 6
Views: 1816

Signal shielded wire

Hi Guys, I was wondering what sort of shielded wire are you using in your amps? And (even more important ;)) -- where do you source it from? In Australia I have an access to a very thin shielded cable that snaps almost all the time once it's solderd. It's like 0.5mm in diameter... Looking for someth...
by TooL46_2
Mon Sep 17, 2012 1:53 pm
Forum: Technical Discussion
Topic: flashy blue light in power tubes
Replies: 10
Views: 2755

Re: flashy blue light in power tubes

It is a MONSTER!

These tubes glow cause they are filled with Mercury vapor. It always makes me smile when I watch this video ;)
by TooL46_2
Wed Sep 12, 2012 10:51 pm
Forum: Technical Discussion
Topic: Dual Output Transformers
Replies: 15
Views: 5761

Re: Dual Output Transformers

The connections as in model 10p is how I understood it. Thanks for the scans.

Just to be clear -- I'm not planning on building any power transformerless amps at any stage. Nor would I ever recommend to anyone building such. I know the risks and would never do this ;)
by TooL46_2
Wed Sep 12, 2012 2:29 am
Forum: Technical Discussion
Topic: Dual Output Transformers
Replies: 15
Views: 5761

Re: Dual Output Transformers

Thanks Steve! If you scan those pages by any chance -- I'd love to see them.

NB: running the UNIVOX amp straight from the line (without PT) sounds very risky...
by TooL46_2
Tue Sep 11, 2012 10:41 pm
Forum: Technical Discussion
Topic: 6V6 project ideas needed
Replies: 13
Views: 3864

Re: 6V6 project ideas needed

With only 3 ECC83s you'll need a very serious channel cloning if you require 2 channels. Effectively you can use only 2 (2.5 at most of them) since you want PP power stage. I'd suggest a single channel -- the amount of gain you can then control with your guitar's volume knob. Something a'la Atomic w...