EICO HF-35 MONOBLOCKS!!

vintage and modern toys of the old dog :-)

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EICO HF-35 MONOBLOCKS!!

Postby vintage_dog » Thu Dec 15, 2005 2:07 pm

... rare and collectible...this is one of my reference EL-34 PP amp...spent over p120k+ to bring them in, have them restored (all premium parts) and re-tubed.

Letting go for "SOLD". Why? I have the even rarer Eico HF-60 (Eico's flagship monblocks) with Acrosound transformers :-).
I don't need 2 Eico monblocks, do I? ;-)

Here are the pics:

http://www.wiredstate.com/gallery/eicohf35

The monoblocks will include:
- matched pair Svetlana El34s (new)
- 5AR4 rectifier tubes
- NOS 6SN7
- NOS EF86

For more info:

http://users.rcn.com/fiddler.interport/HF35.HTM

This is what Bob Higgins (an Eico collector, audiophile) wrote:

"I have a pair of these amps. I don't think I have ever heard any better sounding amps at any price.
Background noise is not detectable (with 90dB speakers). Dynamics are completely unrestrained. Harmonic signatures are lucid and natural. Vocal performers sound as if they were present in the room. HiFi disappears and only the music remains.

As near perfect as it gets.


Technically, the circuit used is the Mullard 520, a British equivalent of the seminal Williamson circuit. It is this circuit, plus the massive and excellent output transformers, that are responsible for the superior sound.

You DO NOT need to scour the earth for NOS output tubes. I am using JJ E34L's (purchased from Triode Electronics) and they sound excellent. "
Last edited by vintage_dog on Mon Dec 19, 2005 9:05 am, edited 1 time in total.
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Postby vintage_dog » Thu Dec 15, 2005 2:31 pm

ELNA Cerafines, Auricaps, Allen Bradley...

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spaghetti wires not included :lol:

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Postby marty_e » Thu Dec 15, 2005 2:49 pm

Hi Francis, does this come with the optional enclosure and bottom plates? thanks.
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Postby vintage_dog » Thu Dec 15, 2005 5:59 pm

doesn't have a cage (never used vintage amps with cages to prolong life of tubes). comes with chrome-plated bottom plate.

these amps will only be available this december. if there are no takers in december, they will be withdrawn on sale and will sit in the attic :-(
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Postby vintage_dog » Thu Dec 15, 2005 8:43 pm

okay, i got curious and decided to bring-out my sonus faber minima amator. they've been hibernating for a few months now. it's 4 ohms, so i hooked them up the hf35 (this has 4-8-16 taps). let it warm-up a bit, and put on a favorite jazz CD.

the SF MA were atop the contours, but the staging was simply amazing - deep, wide, so 3D...am in love with this combo...guitars were so articulate, heck, even the bass was so well defined i thought i was listening to much bigger speakers...no hint at all it comes from these bookshelves. the Eico just gave it so much life it was alive :-)

is it the violin? the Eico hf35 or the minima amator? frankly, who cares? tonight, i'll just enjoy my music. :D

now am torn...

should i (sell), or should i not, should i, or should i not...
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Postby ichabod » Fri Dec 16, 2005 2:13 pm

Can jadis better them? Or a marantz 8B? I suppose that's even harder to answer when one listens and enjoys the music. Selling it so others may likewise enjoy it is such a good idea. Which now?
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Postby vintage_dog » Sun Dec 18, 2005 12:06 am

this will be up for sale until monday only...

just read a mod on this amp converting the ef86 into triode (12ax7). if no takers, will work on this conversion soon...
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Postby Tubedude » Sun Dec 18, 2005 2:54 am

James, the EicoHF35, HF 50 and HF 60 KILLS a Marantz 8B!
The new Svetlana EL-34 tubes sound GREAT in this amp.
I own a pari of HF60's, my best high powered amp.
I have heard HF35, HF50 and HF60 head to head with LS3/5A IMO the HF35 is a bit better than the HF50 or HF60 via the Rogers.
Francis, I think you will regret parting with this one!
The cage is ugly and will cause heat build up.
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Postby vintage_dog » Sun Dec 18, 2005 9:52 am

it's official. i am withdrawing this item for sale.

after the holidays, these monoblocks will go back to the master craftsman (rivo) for a new set of restoration:
- conversion to a triode pre-amp section (from ef86) for more tube-rolling options
- tweaking the feedback section to further lower distortion and gain
- inserting a choke under the chassis for an even smoother rectification
- rewinding the power transformers to 220v to avoid any accidents
- wood sidings c/o handyman

another exciting amp will emerge from an already giant killer :-) this 45 year old amp should last another 45 years.

thanks for helping me "see the light" on these amps tubedude...
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Postby vintage_dog » Wed Jan 24, 2007 5:24 pm

these babies just gathering dust on my shelves. :cry:

i have their bigger brothers HF60s with matching mono preamps still to be fired-up....

anyone interested in possibly adopting them (HF35s) temporarily or permanttly, please send me a PM...
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Postby arnoldc » Wed Jan 24, 2007 5:51 pm

pahiram!
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Postby iceman90a » Wed Jan 24, 2007 6:21 pm

Sir pa next kay Arnoldc :)

Thanks
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Postby vintage_dog » Wed Jan 24, 2007 7:15 pm

vintage_dog wrote:it's official. i am withdrawing this item for sale.

after the holidays, these monoblocks will go back to the master craftsman (rivo) for a new set of restoration:
- conversion to a triode pre-amp section (from ef86) for more tube-rolling options
- tweaking the feedback section to further lower distortion and gain
- inserting a choke under the chassis for an even smoother rectification
- rewinding the power transformers to 220v to avoid any accidents
- wood sidings c/o handyman

another exciting amp will emerge from an already giant killer :-) this 45 year old amp should last another 45 years.

thanks for helping me "see the light" on these amps tubedude...


there are now 3 folks on queue to try them out.

they are in the original restored state by hypertriode. have not been able to do any of the planned mods above...forgot all about them actually. circuit is stock but parts are all premium...

:D

they are meant to outlast your lifetime...they have already survived close to 50 years...
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Eico

Postby kabubi » Fri Feb 02, 2007 1:57 am

Francis,

hope you won't mind if i asked who the lucky owner/caretaker of the Eico is.


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Re: Eico

Postby vintage_dog » Wed Sep 19, 2007 3:59 pm

kabubi wrote:Francis,

hope you won't mind if i asked who the lucky owner/caretaker of the Eico is.


k


deal didn't push through.

these amps gathering dust on the shelves... :D
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Eico HF monoblocks

Postby kabubi » Wed Sep 19, 2007 4:06 pm

if you're still looking for someone to baby sit them permanently, all i can say is "Me" :D

thanx VD!


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Postby vintage_dog » Wed Sep 19, 2007 4:09 pm

kabooobs,

try them out sometime in your system. what speakers you have?
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Eico

Postby kabubi » Wed Sep 19, 2007 4:13 pm

vintage_dog wrote:kabooobs,

try them out sometime in your system. what speakers you have?


Ike's voigts!
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Re: Eico

Postby vintage_dog » Sun Sep 23, 2007 10:29 pm

kabubi wrote:
vintage_dog wrote:kabooobs,

try them out sometime in your system. what speakers you have?


Ike's voigts!


the voigts don't need the power of the HF35s.

tried the HF35s earlier...drove the VR4jrs and LS3/5A with ease
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Re: EICO HF-35 MONOBLOCKS!!

Postby vintage_dog » Sun Oct 06, 2013 11:12 am

8 years later, finally decided letting go of these to a friend whom am helping get started into tube audio...

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