Holden amps help please!

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Holden amps help please!

Post by Timpac »

Hi, I recently re-acquired my old Holden amps and thought I'd try to find out a bit more about them.

I have a Graphic Professional 200 head with tremolo & reverb, and a Musician 100 twin channel combo with tremolo. Can't figure out how to add pics so here's some links:
https://drive.google.com/file/d/1g9i4OI ... sp=sharing
https://drive.google.com/file/d/14rPnZG ... sp=sharing
https://drive.google.com/file/d/1_NsCkI ... sp=sharing

The only info I could find was on this site: https://www.audioculture.co.nz/scenes/n ... uitar-amps

* HOLDEN MUSICIAN 100 COMBO
Released 1974 or 1975. 100/50 watts switchable. Four EL34 tubes. Master volume/overdrive. Effects send and return. First design retaining Fender-style preamp but redesign of output stage with four EL34 tubes and new power transformer.

* HOLDEN GRAPHIC PROFESSIONAL
Released 1976. 100 and 200-watt amp head. All-linear fader controls plus rocker selector switches. Only about 25 manufactured because of very high costs.

Does anyone know anything about them? History, value, rarity, etc??? Thanks!

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Kris
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Re: Holden amps help please!

Post by Kris »

that 200 must be a monster,replete with SLIDERS OF DEATH.
Theres been a few threads over the years,you may find some info with a search-viewtopic.php?t=16685

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Re: Holden amps help please!

Post by Timpac »

Kris wrote: Thu Aug 13, 2020 8:41 pm that 200 must be a monster,replete with SLIDERS OF DEATH.
Theres been a few threads over the years,you may find some info with a search-viewtopic.php?t=16685
Thanks mate, I'll have a look!

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Re: Holden amps help please!

Post by Anvil Amps Alan »

Some knowledge here, the designer may even chime in.https://www.facebook.com/groups/255658085128294/
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Re: Holden amps help please!

Post by Slowy »

Are those the original GEC KT88's in there? Fabulously valuable tubes but probably stuffed. The Holden runs some serious voltages.
I've met a few over the years; power over subtlety is how I'd describe them.
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Re: Holden amps help please!

Post by Timpac »

Slowy wrote: Fri Aug 14, 2020 9:55 am Are those the original GEC KT88's in there? Fabulously valuable tubes but probably stuffed. The Holden runs some serious voltages.
I've met a few over the years; power over subtlety is how I'd describe them.
Yes, as far as I know it's all original. It seems like everything is working properly - tubes included. You're right about power. This thing sounds huge!

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Re: Holden amps help please!

Post by Timpac »

Anvil Amps Alan wrote: Fri Aug 14, 2020 9:43 am Some knowledge here, the designer may even chime in.https://www.facebook.com/groups/255658085128294/
Awesome, thanks for that!

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