[MisterX]

It sure is.

 

[Erik S.]

Quote:

Originally Posted by MisterX It sure is.

Thanks! it makes ordering parts a little easier and cheaper

 

[steinchen]

another shop carrying the tubes and sockets is http://www.thetubestore.com/ (maybe worth to be mentioned at the hybrid site)

how to order the sockets via http://www.vacuumtubes.net/ ? They don't have a classical webshop and the pdf-pricelists contain tubes only. Does anybody got a part number ?

tubedepot.com is quite pricy compared to vacuumtubes.net (+$2 per tube, almost double the price) and $25 shipping for a $30 order definitely uneconomical for european customers

 

[individual6891]

I might have completely missed this but.. has anyone measured the current drain of the amp?

 

[JWFokker]

Crap. I didn't order quite enough caps from Digikey to do two amps. I totally missed the L/R thing. Its a good thing I still have to order the diodes from Mouser.

Anyone know if either the 1N5291 or J503 is better than the other?

 

[drewd]

Quote:

Originally Posted by individual6891 I might have completely missed this but.. has anyone measured the current drain of the amp?

Not directly, but the heaters draw 150mA, the lion's share of the current. The idle current of the buffer is 2mA in low bandwidth mode, 20mA in high bandwidth mode. The LED draws a smidgen of current and the plate current is about a milliamp. So, figure between 160mA and 180mA at idle.

-Drew

 

[drewd]

Quote:

Originally Posted by JWFokker Crap. I didn't order quite enough caps from Digikey to do two amps. I totally missed the L/R thing. Its a good thing I still have to order the diodes from Mouser. Anyone know if either the 1N5291 or J503 is better than the other?

Sorry about that! The CRDs are a tossup, one is as good as the other. The 1N5291 has slightly tighter tolerances, but in this application, it's not important. I think that the 1N5291 is less expensive, so maybe that is the biggest difference.

-Drew

 

[slindeman]

Quote:

Originally Posted by individual6891 I might have completely missed this but.. has anyone measured the current drain of the amp?

Mine draws around 190mA. It spikes to over 400mA briefly at powerup, yet I've had no problems powering it with the Elpac 24V 330mA linear wal-wart.

 

[Jaypetermen]

Does any know of a source and/or part number for panel mount tube sockets (non-baord mount sockets) for the 12FK6 or 12AE6A tubes?

I would like to try mounting the tube sockets to the top cover of the enclosure.

 

[n_maher]

Jay,

There literally are a ton of them on the web. If you google "7 Pin Mini Tube Socket". I think you'll see plenty.

Nate

 

[drewd]

Quote:

Originally Posted by Jaypetermen Does any know of a source and/or part number for panel mount tube sockets (non-baord mount sockets) for the 12FK6 or 12AE6A tubes? I would like to try mounting the tube sockets to the top cover of the enclosure.

Here's a source: http://www.cascadesurplus.com/catalo...products_id/35. I think that I've purchased from them in the past.

Here's another one: http://www.surplussales.com/Tubes-So...ubeSkts-2.html. I've definitely bought from them and they were fairly quick.

Check on Google - I picked up a bunch of PCB 7 pin sockets a few weeks ago for something like 25 cents each from a surplus store.

-Drew

 

[SHLim]

PartConnexion carry boutique 7 pin tube socket.
http://www.partsconnexion.com/catalog/tubesockets.html
BTW, they are having 15% sales on all caps (except BG) this month.

Have fun,
Sam

 

[JWFokker]

I don't like Angela's ordering system (or lack therof) so I thought I was stuck with Tube Depot's crappy sockets. Parts Connexion has some good looking hardware for very reasonable prices. Thanks for the heads up, dude.

 

[n_maher]

Just a quick note - I've completed (finally) an excel version of the BOM w/ prices and part numbers that should be available to be downloaded within the next couple of days. I'll post a link as soon as it's up.

For those who've been wondering, the base parts cost of this amp (what it costs to populate the board only) is around $75. You can push this down a bit more by being really picky about who you get your tubes from and so on but that's really a pretty realistic base. To that you need to add jacks, switch(es), knob(s), an enclosure and a power supply. If you keep it simple you should be able to get it all done for around $125. Maybe less, I just can't check every conceivable configuration.

Hope that helps some people out,

Nate

 

[JWFokker]

Oh, wait a minute. Parts Connexion's ordering method sucks even worse than Angela's. When will resellers get around to joining everyone else in the 21st century and get online ordering? I'm not going to screw around with that crap.

Cascade got my business. They even take Paypal.