Beautiful monster. Needed a cold solder joint fixed. Now I need my back fixed.
HEX Electrics 300X
Moderators: pompeiisneaks, Colossal
HEX Electrics 300X
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I build and repair tube amps. http://amps.monkeymatic.com
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dorrisant
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Re: HEX Electrics 300X
That is soooo cool!!!
You know I'm gonna love on the engraved plates! Thanks for posting.
Any more pics or story?
You know I'm gonna love on the engraved plates! Thanks for posting.
Any more pics or story?
"Education is what you're left with after you have forgotten what you have learned" - Enzo
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WhopperPlate
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Stevem
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Re: HEX Electrics 300X
Kinda crazy to me that with all that money that must be tied up in iron and output tubes to no have a fan or two on that!
When I die, I want to go like my Grandfather did, peacefully in his sleep.
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
Re: HEX Electrics 300X
The owner is a doom metal guitarist/bassist. He once appeared on The Great Race with his partner. Nice guy. He's replacing his old Earth Sound Research 4xKT88 head with this one. The HEX has a nice Master Volume, which makes the preamp distortion on this amp really sweet to play.
I build and repair tube amps. http://amps.monkeymatic.com
Re: HEX Electrics 300X
No fan! OTOH, the 6550s are biased at about 25% dissipation, 630v on plates and only 300v on screens, provided by the UL OT. So they're never going to run very hot.
I build and repair tube amps. http://amps.monkeymatic.com
Re: HEX Electrics 300X
I can’t get my head around that, it seems more like split rail pentode than UL?
Last edited by pdf64 on Fri Mar 31, 2023 4:13 pm, edited 1 time in total.
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Re: HEX Electrics 300X
No, me wrong, u guys rite. Screen voltages provided by orange wire with red stripe.
I build and repair tube amps. http://amps.monkeymatic.com
Re: HEX Electrics 300X
Love this amp and is my current project but in styling of Orange OR120 and a 300w more like this amp.
Build a few 150w versions still rocking my area (6550).
Looking at KT150 & KT170 tubes as well. Expensive!
Mark
Build a few 150w versions still rocking my area (6550).
Looking at KT150 & KT170 tubes as well. Expensive!
Mark
Re: HEX Electrics 300X
The expense and mixed reviews on durability of KT-150's convinced me that multiple pairs/quads of '88's were the way to go.
Tube junkie that aspires to become a tri-state bidirectional buss driver.
Re: HEX Electrics 300X
Cool amp, looks as heavy as my old PS300. 
The UL connection keeps the screen voltage lower than the plate voltage, which is much kinder to the screens than the typical fixed screen supply.
The UL connection keeps the screen voltage lower than the plate voltage, which is much kinder to the screens than the typical fixed screen supply.
Re: HEX Electrics 300X
Nice. Heavy Duty beast!
Who needs a gym membership with that iron in the house.
Cheers
G
Who needs a gym membership with that iron in the house.
Cheers
G