Tube Amp Archive

We stand on each others shoulders. Humanities achievements are the result of exploring and socializing ideas. Members of the forum, by their actions, enjoy cooperation and sharing - this is not an exclusive club, it is a community. When ethics are extended beyond natural law, the application becomes...

OK, I haven't researched the topic, because I reasoned that the collective intelligence already has the answer. Having obtained OTs from discarded '50s radios/hifi systems, where the output taps are 2ohm for 2 X 6V6 , is there any caveat consideration of adding say a 10watt resistor to equal a 8ohm ...

Thanks Mark, A lot of information in that Dynaco thread but seemingly not conclusive - different strokes for different folks. A degree of conjecture over the correct impedance and the number of A470 variants. Assuming the A470 design produces the definitive Rocket tone, is the Triode version the onl...

I'm planning a Rocket build (Std 4 X EL84) and am seeking recommendations for the output tranny that's going to to produce optimal tone.

Which maker/model delivers the goods for you?

Hi Cliff - A lot of solid advice from coolidge, dreric, Mark & soma_hero. I don't want to be a bubbleburster either but what you are considering isn't "Home on the Range". Take a step back. To me, the most important consideration is the purpose of the venture. Launching a business is an onerous task...

David -

Don Butler @ Toneman (http://www.tone-man.com/pyramid.htm) carries Pyramid and lists the Classics.

Never tried the Classics but can vouch for the Pure Nickel Round Wounds - in my experience they hold their pitch far longer than steel string equivalents and are malleably comfy-recommended.

Dr d, you're correct. When the variance to stated value of components is considered, it's not surprising that some tweeking is required, especially when one's ears are involved - just trust them, they're yours. Thanks Ryan, for staying on topic & keeping it simple. Thanks Martin, for the tonestack t...

Muchas gracias Tony for the delightful results of all your efforts. Props to Omar for opening the garage & Allyn for continuing to host this site. Thanks to all posters - whether you or we realize it, you are striking chords and stirring thoughts. Alexander is not only a circuit wizard, he understan...

roadkingbluzs PostPosted: Sat Oct 02, 2010 4:04 pm Post subject: It's a go! Nice and strong. In the replacement process I desoldered and resoldered various points of vibrato circuit. Thanks for all the input. Bob Good going, Bob... rp PostPosted: Fri Sep 24, 2010 2:51 pm Post subject: This might be...

Here's the newest clip of mine.........pretty much finished "tweaking" it. OD only, bridge pickup (Dmzio '59 PAF). Just plugged in the guitar, got a good sound dialed in, stuck an SM57 in front of the 1x12 closed back cab, did a single run thru of the track & recorded it....took about 10-15 minutes...

Well, since others have been throwing some "tried & true" hats into the ring, may I suggest that if you haven't heard Kal's work before that maybe it's time: http://www.youtube.com/watch?v=SPurHfElzyA http://www.youtube.com/watch?v=Xij4BUAhzRs&feature=related http://www.youtube.com/watch?v=rzwa8mFqp...

Nice job Mr Pliny!


Was there any particular rationale for component selection - what type of diode are you using for rectification?

What method of implementation is your VVR?

Thanks in advance.

Bias points are common on the back panel of PP circuits.

If there is available real estate, what requirements/considerations/caveats are involved with installing the bias pot on the back panel?

Stumbled upon (Freddie King style) a boutique amp thread (GP or other?) and came across a builder or two I hadn't heard of (not unusual with new ones cropping up almost daily). After listening to the Teixeira amps clips it was apparent (slow on the uptake) that EQ for many is about finding your "spo...

David, nice work.

Henry, when it comes to cram, you da man.

Would be great to access the tutorial, Heistand's Cramming Made Workable (cause lord knows it ain't easy).

[ please note: Elmore Leonard has curtailed my use of exclamation ]