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Little Dot Tube Amps: Vacuum Tube Rolling Guide - Page 596

post #8926 of 8935
Quote:
Originally Posted by gibosi View Post
 

 

If the tubestore can't even tell you if they are short or tall, then no, I would not encourage you to purchase from that vendor....

 

But a question? Why the apparent aversion to foreign sellers?  For many here, the Yugoslavian Ei tubes purchased from Serbian vendors have been excellent buys....

 

Would rather not wait 2 weeks for shipping. Does brand matter much? I think I'll go with http://www.ebay.com/itm/4-Olympic-6HA5-6HM5-Electronic-Vacuum-Tubes-in-Box-NOS-Matching-Set-/111572170113

 

Edit: Went ahead and purchased 2 GE 6HM5s, hopefully it'll be as good as I've heard, or at least better than the M8100 for treble smoothness.


Edited by Shrew - 1/23/15 at 11:04pm
post #8927 of 8935

The best one I tried were the EI ones recommended here.

post #8928 of 8935
Quote:
Originally Posted by Shrew View Post
 

Should I buy the 6HM5 from thetubestore.com (they don't even tell you what brand or style it is short/tall) or just buy two different 6HM5 tubes from ebay? I don't see any matched pairs or sellers selling 2 in the States.

I bought mine from this seller pretty cheap he accepted around $22.00 for 4 tubes       

http://www.ebay.com/itm/251611916081?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

post #8929 of 8935
Quote:
Originally Posted by Shrew View Post

 

Edit: Went ahead and purchased 2 GE 6HM5s, hopefully it'll be as good as I've heard, or at least better than the M8100 for treble smoothness.

 

As long as they both have the same construction, they should be fine. However, I have seen two very different GE 6HM5, one manufactured by Mullard and relabeled as a GE, and the other silk-screened "Made in Britain" from an unknown factory:

 

Mullard (Mitcham) construction. Note the getter flashing covers almost half the tube.

 

 

Unknown factory. Getter flashing covers less area than the Mullards and the plates are different

 

 

Both these sound great, but as you might expect, they do not sound the same.

 

Good luck! :)

post #8930 of 8935
Quote:
Originally Posted by gibosi View Post
 

Unknown factory. Getter flashing covers less area than the Mullards and the plates are different

 

 

Evidence of Philips tooling on the glass...

post #8931 of 8935

Yes, these are a bit of a mystery. I can feel and see the four glass seams typical of Philips manufacture on the top, but there are no visible etched factory codes. While I think we can safely rule out one of GE's factories in the US, still the construction is different than the Mullard and Ei 6HM5s we have seen. And so for now, the factory is unknown....

post #8932 of 8935

Oh manl

Talk about an emotional rollercoaster!

Last night I slept in my own bedroom and bed after 483 nights in hospital beds.

Happy! Happy! Happy!

Today I began to fire up my nightstand system which my wife had unplugged during my absence.

Fired up the Squeezebox streamer and connected it to the network.  Plugged a pair of items in to check it was working.

Perfect!

Plugged in the Little Dot MKIII and flipped it on.

Reached for the nodded Fostex T50's...

Smoke comes pouring from the bottom vents on the LD3!!!

Cr@p! Cr@p! CR@P!!

post #8933 of 8935
Quote:
Originally Posted by BGRoberts View Post
 

Oh manl

Talk about an emotional rollercoaster!

Last night I slept in my own bedroom and bed after 483 nights in hospital beds.

Happy! Happy! Happy!

Today I began to fire up my nightstand system which my wife had unplugged during my absence.

Fired up the Squeezebox streamer and connected it to the network.  Plugged a pair of items in to check it was working.

Perfect!

Plugged in the Little Dot MKIII and flipped it on.

Reached for the nodded Fostex T50's...

Smoke comes pouring from the bottom vents on the LD3!!!

Cr@p! Cr@p! CR@P!!

 

Hi BG.

 

Glad to hear of your GOOD news, but not your BAD!...commiserations...

 

All I can say is here's your opportunity to look at the Feliks-Audio 'Elise' that has eclipsed my MKIV SE big time... just a thought ;)

post #8934 of 8935

This may seem crazy but I'd have to ask: can bad cables make the amps buzz? I have the LD I+ which always has a buzzing sound at a certain volume (about 20%), even when plugged into nothing. Later I tried removing the input cable (but still keep the amp and my headphones on), and the buzz is gone. I've noticed bad cables do drastically worsen the sound, but I don't know if I can constantly give out buzz...

post #8935 of 8935
Quote:
Originally Posted by lehoang15tuoi View Post
 

This may seem crazy but I'd have to ask: can bad cables make the amps buzz? I have the LD I+ which always has a buzzing sound at a certain volume (about 20%), even when plugged into nothing. Later I tried removing the input cable (but still keep the amp and my headphones on), and the buzz is gone. I've noticed bad cables do drastically worsen the sound, but I don't know if I can constantly give out buzz...


The input cable is from a DAC, which is plugged in and powered up, i presume? Could be a ground loop. i experienced that before or maybe its a non-related event..

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