mine is a dual-tracking jung 2000 super regulator with improved (crosses fingers) noise reduction and boosted current output for future op-amp and dual-supply projects.
~ brad.
~ brad.
Control unit
Being bored of designing large boards with all the required analog discrete circuitry to control and supervise the amp functions (see the PGP auxilliary circuitry), I have decided to build a fully digital control unit around the latest YAP 2.1 power amp. An Atmega 324P MCU will control and supervise the power up/down sequencing, temperature, output offset, etc... Status is displayed on a LCD graphic 240x60 display (Toshiba T6963C controller).
Hardware (very simple) & software (interrupt driven, not so simple, but it's my specialty 🙂 ) design is completed, now looking after an AVR Dragon and a STK500 to start development...
Being bored of designing large boards with all the required analog discrete circuitry to control and supervise the amp functions (see the PGP auxilliary circuitry), I have decided to build a fully digital control unit around the latest YAP 2.1 power amp. An Atmega 324P MCU will control and supervise the power up/down sequencing, temperature, output offset, etc... Status is displayed on a LCD graphic 240x60 display (Toshiba T6963C controller).
Hardware (very simple) & software (interrupt driven, not so simple, but it's my specialty 🙂 ) design is completed, now looking after an AVR Dragon and a STK500 to start development...
Upgrading of current amplifier (bigger PSU, making it bridgeable etc), then ty some Full Range Transmission Lines (FRTLs for short), find a new stylus for my record player, make a pre-amp for it aswell.
Then blow something up.
Chris
Then blow something up.
Chris
Hello ,
my next project is a preamp with three different , switchable phono stages ( D3a , EC8010 and 6021 ) and three switchable , different line stages .
I hope , this will be ready for the next ETF in France 🙂 .
Regards , Alexander .
my next project is a preamp with three different , switchable phono stages ( D3a , EC8010 and 6021 ) and three switchable , different line stages .
I hope , this will be ready for the next ETF in France 🙂 .
Regards , Alexander .
An externally hosted image should be here but it was not working when we last tested it.
Speakers - prolly a fonken of some sort.
But I do fancy a Pass Labs amp of some sort...
Is there an end to this once the bug has taken hold?
But I do fancy a Pass Labs amp of some sort...
Is there an end to this once the bug has taken hold?
PASS F5 & B1 looking for a good Pre design and then decide on Phonoclone 3 - PS caps and heatsinks proving difficult to source easily in UK.
Shigaclone
O/Bs
Repairs to do:
rebuild Yamamura prototype current amp from early 1990s
realign Perreaux 2150b - 2nd system.
clear up the garage/workshop!
Shigaclone
O/Bs
Repairs to do:
rebuild Yamamura prototype current amp from early 1990s
realign Perreaux 2150b - 2nd system.
clear up the garage/workshop!
I voted for other, but I guess I could have voted amp or speakers. My next project will probably be a pair of active full range speakers.
I have a couple of other projects on the go at the moment, including a Class A MOSFET based headphone amp, and some 3 Way floor standers which I need to get done. Once I get these finished🙄, I can get started.
Chris.
I have a couple of other projects on the go at the moment, including a Class A MOSFET based headphone amp, and some 3 Way floor standers which I need to get done. Once I get these finished🙄, I can get started.
Chris.
An active 3-way speaker with current-source/transconductance configured LM3886/4780 for each driver.
Taking forever at my slow pace.
Taking forever at my slow pace.
I have always wanted to build an audiophile boombox! 🙂 Please let me know how it goes!
I'll post the results and design as soon as I have it done. Don't hold your breath though. My projects always seem to take way too much time due to all the pre-emptions. For example. This weekend is shot due to business, the next for camping and the next for a wedding. Typical!
F5
Get my measuring gear measuring...rather than catching dust.
Two-way inspired by many and refined by augerpro, his "No Quarter" with
LeCleac'h mouth on the QSC horn
Good to have the forum on it's way back
Get my measuring gear measuring...rather than catching dust.
Two-way inspired by many and refined by augerpro, his "No Quarter" with
LeCleac'h mouth on the QSC horn
Good to have the forum on it's way back
A Subwoofer. Two 6" 8ohm 40watt drivers in parallel in a single sealed enclosure, driven by my lovely LM3886 Gainclone.
Some kind of simple preamp...my amps need a little more gain than my sources can provide by themselves, I think 🙁
Current projects are the Zaph L18 with matching stands, the stands using 1" 'sticks' of MDF and glued together for the central column and triple layer top and bottom plates.
Future projects include an audio rack, some cheaper speaker stands for use around the house, and a dumpster-diving actively amplified OB line array, using bits I happen to have lying around the house for half a decade 🙂 Some multi-material (copper, aluminum, wood and glass) enclosures for a Buffalo DAC and a LM3886 stereo amp are also somewhere on the horizon. I hope to complete all this by February...
Future projects include an audio rack, some cheaper speaker stands for use around the house, and a dumpster-diving actively amplified OB line array, using bits I happen to have lying around the house for half a decade 🙂 Some multi-material (copper, aluminum, wood and glass) enclosures for a Buffalo DAC and a LM3886 stereo amp are also somewhere on the horizon. I hope to complete all this by February...
Completed my HA (AK-SCHA) back in April.
Next: Buffalo 32S
followed by:
ULD Extreme (amp)
and some bookshelfs.
Next: Buffalo 32S
followed by:
ULD Extreme (amp)
and some bookshelfs.
Currently I gather all parts for a LM3886 chipamp w/ headphone amp and sub out.
The next project will be finishing a TDA2030/2050 amp for the sub and then building the sub enclosure.
After that, I'll build some small full range speakers from some old Philips car speakers sporting 25 Watts. 😀
The next project will be finishing a TDA2030/2050 amp for the sub and then building the sub enclosure.
After that, I'll build some small full range speakers from some old Philips car speakers sporting 25 Watts. 😀
Have just finished the solid model designs for a nude, open baffle, cardioid speaker. Lowther PM6A on top, Emminence Delta 8 for open baffle and two Tang Band 8 inch woofers in the bass section. The solid model is so I cannot make a mistake bigger than plus or minus one US foot when I attempt to build them.
To be honest I am going to beg help from people who actually have skill at wood devouring.
Bud
To be honest I am going to beg help from people who actually have skill at wood devouring.
Bud
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