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sucks2beme
12-18-2005, 07:34 PM
I'm looking for a replacement for 2P3 tubes in my headphone amp. They are very sensitive to vibration. Also, since I can't find anywhere to buy these, I'm
hoping to find a cross that's easier to find. I know some of the tube gurus
here will have an answer.
BlueMDPicker
12-18-2005, 08:43 PM
It's not in any database I have access to. Is it Chinese or Russian? What model headphone amp? Do you have a picture of it or a link to a site with a picture?
RuSsMaN
12-18-2005, 09:20 PM
Yeah, really. 2P3? Wtf?
sucks2beme
12-18-2005, 09:30 PM
It's a Little Dot I. A cheap Chinese made. I think it's a Chinese tube.
Two 1B2's and four 2P3's. WWW.little-tube.com. Got it on EBAY.
I've tried their site direct for info, but no response. They have tube sets for sale, but I have no idea how to get their attention. I may have to have
one of the Chinese speaking software guys at work try contacting them.
It may be time to splurge for a Woo or some other brand that has some support.
RuSsMaN
12-18-2005, 09:52 PM
It's a parallel cathode, holy crap. Let me go dig through the garage a little.
ND13
12-19-2005, 03:16 PM
I thought that 300Bs and 2P3s were interchangeable. I could swear that I've seen a couple of amps that said they could use either/or.
RuSsMaN
12-19-2005, 05:49 PM
They aren't even close. 300b is a power triode, used in single ended amps (not to mention it's about 15-20 times larger than his 2p3's).

I've got nothing man, still looking, but coming up empty.
ND13
12-19-2005, 06:29 PM
I wonder what it was then....I'll have to look under my bookmarks when I get home. There's some tube out there that replaces it, I know I've seen it somewhere and recently. :confused: :confused:
Shizelbs
12-19-2005, 07:31 PM
I'll look around my stash tonight too.

Its a nice amp isn't it? I gots the LD2.
sucks2beme
12-19-2005, 07:50 PM
I'll look around my stash tonight too.

Its a nice amp isn't it? I gots the LD2.

It gets the job done. Hd650's are hard to drive, and the LDI does it well.
What is needed are some better tubes. I think the first stage tubes for both the LDI and LDII are 1B2's. The difference is the four 2p3's VS the two 4p1s's
in the LDII. Were you able to get the extra tube sets?
Shizelbs
12-19-2005, 09:08 PM
I bought my LD2 used and it came with all the tubes I needed. No extras though.