Thanks, Eli - As I've said before, I know just enough to be dangerous! I'll consider the suggestions.
Greetings,
I also have a pair of ea3 and I was going to use this since I have a st 35 JJ 7247 driver tube based amps
Complicating the Simple EL84
I also have a pair of ea3 and I was going to use this since I have a st 35 JJ 7247 driver tube based amps
Complicating the Simple EL84
Well, I got the EA2 Heathkits stripped of their original parts, threw away the input sections, and hooked the resulting "mono block power amps" (at 12W each) up to my Tekton Pendragons.
Results?
QUITE surprising - Here's a friend's impression of the Heathkit's from another forum:
A visit to mr and mrs Boomzilla's! | The Emotiva Lounge
The modest 'kits DO have some "special" to them... Many thanks to those here who guided me through the modifications.
And while I have the experts here, may I ask another question? I have a Dynaco ST70, stock but for a Tubes4HiFi driver board. It sounds like it has a midrange glare. What might I do (preferably very inexpensively) to abate that glare?
Thanks - Boomzilla
Results?
QUITE surprising - Here's a friend's impression of the Heathkit's from another forum:
A visit to mr and mrs Boomzilla's! | The Emotiva Lounge
The modest 'kits DO have some "special" to them... Many thanks to those here who guided me through the modifications.
And while I have the experts here, may I ask another question? I have a Dynaco ST70, stock but for a Tubes4HiFi driver board. It sounds like it has a midrange glare. What might I do (preferably very inexpensively) to abate that glare?
Thanks - Boomzilla
u can get some oil caps they show the octal board with the pio caps
should have some on ebay
INMHO the 12au7 is not known for being strident
MY favorite pp el84 amp is the st35 using the jj 7247 input tube
Also what dac or record player are u using
I am not an expert but I do have experience
should have some on ebay
INMHO the 12au7 is not known for being strident
MY favorite pp el84 amp is the st35 using the jj 7247 input tube
Also what dac or record player are u using
I am not an expert but I do have experience
The ST70 has been driven by the following equipment:
Oppo BDP-105 disc player used as a DAC / preamp
Oppo BDP-105 disc player used as a DAC with Emotiva BASX PT-100 preamp
Emotiva BASX PT-100 preamp used as a DAC / preamp
Emotiva Stealth DC-1 used as a DAC / preamp
The midrange glare was noticeable with Axiom M80 speakers, Axiom M100 speakers and Tekton Pendragon speakers.
The glare was there using both the 4 & 8 ohm taps.
The glare was there in both pentode & triode modes.
The glare was there with three or four different brands of speaker cables.
The glare was there in two different listening rooms.
Oppo BDP-105 disc player used as a DAC / preamp
Oppo BDP-105 disc player used as a DAC with Emotiva BASX PT-100 preamp
Emotiva BASX PT-100 preamp used as a DAC / preamp
Emotiva Stealth DC-1 used as a DAC / preamp
The midrange glare was noticeable with Axiom M80 speakers, Axiom M100 speakers and Tekton Pendragon speakers.
The glare was there using both the 4 & 8 ohm taps.
The glare was there in both pentode & triode modes.
The glare was there with three or four different brands of speaker cables.
The glare was there in two different listening rooms.
AH ha
I went from wyred4sound dsd se to psaudio direct stream to Schitt yaggy to Gustard x20
The x20 was so much better then the above
And mine is unmodded
Gustard X20 Mods
no es 9018 glare dynamics huge sound stage with definition all the audiophile superlatives
I went from wyred4sound dsd se to psaudio direct stream to Schitt yaggy to Gustard x20
The x20 was so much better then the above
And mine is unmodded
Gustard X20 Mods
no es 9018 glare dynamics huge sound stage with definition all the audiophile superlatives
I love the 7247
u could buy a pair of st 35 boards off ebay
mount the resistors and caps underneath can't flip the tube socket
Stick the tube stock through ur 9 pin hole and mount the board to the bottom and run leads to the out put tubes
I rebuilt this one
Restored Dynaco St 35 Stereo Tube Amp EL84 Amplifier | eBay
freaking amazing sound
I am building another one and other stuff so too many maps
u could buy a pair of st 35 boards off ebay
mount the resistors and caps underneath can't flip the tube socket
Stick the tube stock through ur 9 pin hole and mount the board to the bottom and run leads to the out put tubes
I rebuilt this one
Restored Dynaco St 35 Stereo Tube Amp EL84 Amplifier | eBay
freaking amazing sound
I am building another one and other stuff so too many maps
Although I'm sure you're right, Deepgrove, I'm thinking that I'd rather not change the driver board if I can avoid it. Tube rolling? Bias changes? Switching the heaters to DC? Those are fair game. Even replacing a cap or resistor on the amp to slightly different values is doable, but I'm NOT wanting to do major surgery on this amp.
If I can't get it to sound like I want, then I'll sell it. No skin off my nose... But if I can get rid of that midrange glare, I can live with the bass.
Thanks - Boom
If I can't get it to sound like I want, then I'll sell it. No skin off my nose... But if I can get rid of that midrange glare, I can live with the bass.
Thanks - Boom
oh sorry I was speaking about the Heathkit
The only pp amps I like are based on the el84 bq5 pp amps
I have had all done up st 70 just lacked something
I have mk4s that need to be rebuilt and st 70 so I can sell them off
dc will do very little on indirectly heated tube
caps and tubes maybe try upscale he knows his tubes
12AU7 / ECC82 / CV4003 / 5814 / 6189
The only pp amps I like are based on the el84 bq5 pp amps
I have had all done up st 70 just lacked something
I have mk4s that need to be rebuilt and st 70 so I can sell them off
dc will do very little on indirectly heated tube
caps and tubes maybe try upscale he knows his tubes
12AU7 / ECC82 / CV4003 / 5814 / 6189
off topic are the tektons very dynamic?
I heard some zu Omen Def Mk.I
ouch ouch and ouch and with all laid back gear
I heard some zu Omen Def Mk.I
ouch ouch and ouch and with all laid back gear
See my review of the Pendragons here:
Tekton Design Pendragon Tower Speakers Review - HomeTheaterHifi.com
Tekton Design Pendragon Tower Speakers Review - HomeTheaterHifi.com
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