• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

Yo Terry (again)

Very nice Jay, now some braided hose and yu got yurself a hot rod!

Congrats:thmbsp:
 
I think I mentioned it before.....E.H. Scott would be rather proud.....

Is that bezel for the LED the type you can get at Radio Shack?
 
Splendid and Sparkly!!

A stunner Jay!

This needs to be done!

attachment.php
 
Mike Stehr said:
I think I mentioned it before.....E.H. Scott would be rather proud.....

Is that bezel for the LED the type you can get at Radio Shack?
Click to expand...

Yep, just polished like everything.:yes: These things are gonna take a lot of rubbin to keep'm nice, but they're kinda nice to rub on (reminds me of somethin else).:D


Thanks for the kind words everyone.
 
I've had these playing loud all afternoon and the PTs are right at 115 degrees. The OPTs are a balmy 97, while tube internals are hovering right at 260ish. I want to keep track of output tube temps to make sure no heat is reflecting back onto the structures. Morgan Jones warns of this with shiny amps and I think these qualify.:D So far so good.:music:
 
Purdy Jay,
and shiny they are.
I love the cap clamps, could you refresh us on the idea, where you pulled them from?
I lost where you posted before.

I can't recall any metal base 6L6s, coulda kept the theme goin' ya know
 
I made those cap hold downs from scratch. Just some flat bar stock Al, #4 threaded rod, and aluminum tubing to cover the allthread. I never could find any chrome acorn nuts in #4, but I'm sure they are available somewhere. The holes in the middle of the tops were for fixing them to a handle for polishing. They get little chrome button caps, that I just realized I didn't put in.:D
 
jay- our True Value hardware store in Emporia has a rack full of chrome hardware:yes: what size and thread? I can pick some up Saturday.They even have various chrome fender washers.
 
jaymanaa said:
I've had these playing loud all afternoon and the PTs are right at 115 degrees. The OPTs are a balmy 97, while tube internals are hovering right at 260ish. I want to keep track of output tube temps to make sure no heat is reflecting back onto the structures. Morgan Jones warns of this with shiny amps and I think these qualify.:D So far so good.:music:
Click to expand...
But it only takes a 1/2 W per side to be loud at your place:D I oughta swing by HF and pick up that cheap infrared thermal reader thingie they sell next Saturday.
If you wanna bolt the bottom pans on for safety- do it! Both edges of the pans should be highly polished enough that it shouldn't make any difference which is to the front.Just curious if you think we ought to put a screened vent in the bottom for some vertical air flow.That could be done while mounting the feet.
 
Crap, I just heard some chit on a piece of music, that I haven't heard before. Sounds like a very light whisker brush on a snare mebee.:scratch2: I've heard this CD on these speakers with probably 25 different amps (sort of a reference for me), but I don't remember hearing that little transient noise.:music:
 
bricktop said:
What circuit did ya end up using?
Click to expand...

Pretty much the HK 250, with a 6SN7 dropped in for the 6CG7 (only pinout changes), and the output section tweeked a hair to run the Dynaclone A470s. I tried it in UL but didn't care for it (sounded somewhat masked). The power supply is 5U4, 32uf, 1.5Hy choke (56 ohms DCR), 250uf for the 400VDC, then a 15K and 200uf to drop the screens to 310vdc, and a 1 watt 11k and 250uf to get the 295 for the front end. It put out 25 clean watts (per) with a 10k, and 1K tone. It made some nice square waves too, with just a hint of overshoot and no ringing. They sure make these old Heresies ring. :music: I think these dudes may require at least 2 years of additional testing.:smoke:
 
:nono:2 years?! Heck,I might need to wire'em to power a 2 stage pacemaker by then:D

...if they sound "like music"and revealing on the Heresy's,that might be about all ya can ask for:music:
 
Last edited:
OK :tears: I haven't turned them off for two days now, and the chassis is barely warm, even though they are sitting on a blanket (not too smart I know).:D The OPTs never get past room temp, and the PTs are just laughing at this load.:music: I switched from Honky Tonk to AC DC Black Ice, and now my head is uncontrolably swinging up and down and back and forth. I think it's supposed to be though, so it's all good.


Joking aside Terry, they are ready whenever you are.:tears:
 
Ha! any jokin' is taken just as is,a little friendly jokin' around:yes:Actually,I can get up anytime starting Wed.I'll be on a road trip to KCI Saturday morning.We can go as is,or install wood and work out tube selection details before they come back to their home.
 
You must log in or register to reply here.
Back
Top Bottom