EicoHF81Eico HF81 Beautiful-RestoredCompletely Restored  Eico HF81 Integrated tube amplifier.   These amps are rated at 14 watts per channel and feature a built in phono stage. The amp has been restored with the followin...1200.00

Eico HF81 Beautiful-Restored [Expired]


no longer for sale

Completely Restored  Eico HF81 Integrated tube amplifier.

 

These amps are rated at 14 watts per channel and feature a built in phono stage.

The amp has been restored with the following work completed:

A complete bare chassis restoration..chassis cleaned and rca jacks labelled at back.

New Belton  tube sockets and shields in phono/preamp section,  and  in power/ pre-driver section and NOS sockets for rectifier tubes.

Completely rewired with stranded 22 guage wire.

All new power supply capacitors,  2 30uf/500v , can cap was replaced with a JJ 100uf dual at 500v, plus an additional 68 uf /250v under the chassis.

 All the small caps were replaced with silver mica, bypass caps were polypropylene,  coupling caps in the preamp section and power amp section are all PIO K40 and all other small electrolytic caps  replaced.

 

Resistors in the  power supply rail are metal oxide , most plate resistors are Kiwame 2 watt and all others are mix of carbon film/comp.

The original speaker terminals and all rca jacks were replaced with binding posts for the speakers and gold rca jacks for the inputs.

The speaker terminals have the 4 ohm and 8 ohm taps connected to the binding posts.

The original rca jacks were terrible in these amps, making bad contacts and having intermittent grounds. The new rca jacks are tight and have a solid ground. This comes with a new Heyboer extra heavy duty power transformer, which has more metal core and the heaters can handle a few extra amps than their regular replacement version.

The Input selector  was replaced with a new 6x2 switch, and thus all the RIAA phono equalization components have been installed under the chassis. This improves the phono section drastically in this amp with NO HUM!!

There are 3 line inputs now, 1 phono and 1 line out.

The mono/stereo blend switch has been bypassed, and the on/off control on the treble shaft has been moved to the old tape switch on the front.

 

Tubes: 2 EZ81/6CA4 Valvo Branded (Mullard  )

             2 Made in USA 12AX7A (Phono Stage)

             2 Made USA 12AX7A

             2 Line Stage 12AU7A Made in USA

             4 TAD EL84-STR quad of power stubes

           

All the output transformers are original.

 The previous owner repainted the mesh top and all the front and sides in black and looks very nice.

The faceplate is all original. It has all the original knobs and are in good condition.

This one is dead quiet, with no hum, all the controls were cleaned and are quiet.

Email for additional info and pix if required.

Seller Information

tubehead67 

Last 12 months
All-time45100.0%

Member since February 2004

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