Nice preamp 845! Where do you find those chassis?
Any schematic of your preamp? Looks interesting!
Any schematic of your preamp? Looks interesting!
I designed this chassis, and ordered it from local craftsman
Attachments
Aikido Preamp
Here is my Aikido preamp. It uses 12AU7's and was built utilizing Broskie's all in one PCB. Knobs are from Scott at Thingamknobs.
Here is my Aikido preamp. It uses 12AU7's and was built utilizing Broskie's all in one PCB. Knobs are from Scott at Thingamknobs.
Sunday Roast SET
This is my 6DT5 Single ended triode amp.
Power transformers - recovered from halogen lights
Output transformers and choke - recovered from Fluorescent lights (heaters and switch start ballast)
Caps from disposable camera
Chassis - Roasting tray $7
Valve sockets $15
Knob, neon and speaker terminals $10
All other parts were given to me.
Total cost about $30 Australian dollars
Sounds fantastic!
This is my 6DT5 Single ended triode amp.
Power transformers - recovered from halogen lights
Output transformers and choke - recovered from Fluorescent lights (heaters and switch start ballast)
Caps from disposable camera
Chassis - Roasting tray $7
Valve sockets $15
Knob, neon and speaker terminals $10
All other parts were given to me.
Total cost about $30 Australian dollars
Sounds fantastic!
Attachments
OK, Honey, time to roast the chicken, now where'd I put the da&m pan??
Nice job!, very creative-- which speakers?
Best, Don
Nice job!, very creative-- which speakers?
Best, Don
Its only 2W a side, so still need to find some pretty efficient speakers, if any one could point me in the right direction.
I havnt done any serious testing on it other than a listening test, and to me it sounds fantastic. Even with the transformers as Stalker pointed out, arnt ideal. But the bass response is surprisingly good. Plus they were free....
I havnt done any serious testing on it other than a listening test, and to me it sounds fantastic. Even with the transformers as Stalker pointed out, arnt ideal. But the bass response is surprisingly good. Plus they were free....
Thanks SG!
the caps have a rolled lip so i cut the hole with a hole saw just enough to fit the cap but not the lip, Tranies are painted with spray paint gray and silver.
Thanks!
I'm loving it that all i can say i dont really know all the AUDIOPHILE terminology but ill give it my best. Bass is verry good compare to my Rh84 verry powerfull with the LED bias i notice more gain and good notes seperation crisp and clear verry powerfull.
let just say im very excited especially going from the el84.
What speakers are you using with it?
Am alternating between a Vandersteen 1, Coral full range and a diy speaker with vintage sansui alnico woofer and a ribbon driver for mids and highs on my amp (same circuit as yours).
You can also try using plate choke on the 6n1p, you will be amazed with the improvements. 😉
