Photo Gallery - Page 266

tubeamp · 28th November 2009, 12:56 AM

do you think you have enough knobs?, very nice project
T

igormak · 29th November 2009, 03:07 PM

SGregory, very interesting design! Congrats.
Left knob seems to be power switch. Is it?

SGregory · 29th November 2009, 05:22 PM

The left knob is the selector switch. The line amp will accept 3 unbalanced inputs. I am not real happy with the knob and will probably redo.
Found some burr wood in our wood pile.

n_maher · 30th November 2009, 02:05 PM

I don't think I've ever posted in the gallery before, so here goes. Of course after looking around a bit I'm left with a decidedly "unworthy" feeling.

Here's my take on the lilliput amplifier using mostly spare parts that I had around from previous, similar builds. The power supply is a SS rectified, choke filtered design by a friend who also helped tweak the amp circuit to better use parts that I had on had. The chassis is oak with a custom aluminum top plate made by Cam-Expert. I'll try to get the schematics cleaned up in case someone else wants to build a 25lb headphone amplifier.

head1962 · 30th November 2009, 02:12 PM

looks nice and clean inside!
and not a whole lot of components either..
the less the better, methinks
gerrit

SGregory · 1st December 2009, 01:23 PM

Very nice job. The internal wiring cleanliness is an inpsiration.
I assume it sounds as good as it looks.

n_maher · 1st December 2009, 05:55 PM

Quote:

Originally Posted by SGregory

Very nice job. The internal wiring cleanliness is an inpsiration.
I assume it sounds as good as it looks.

Thanks! I cut my wiring chops on a few other projects and figured out quickly that while it take a lot of time and effort to end up with a clean layout it really is worth it in the end especially if you have to do any troubleshooting.

And yes, it sounds quite good to my ears.

mckvak · 2nd December 2009, 02:19 PM

Here is my first tube amplifier. Tubes have 300V on cathode and power of this amp is 4W per channel to 4ohm load. The weight of all amp is 10kg, it´s quite heavy for moving

. I used typical europe tubes PCL86 and ECC83. Brands of tubes are TESLA so I think tubes are from Czechoslovakia. Transformers are from old radio.

tonywong · 6th December 2009, 06:21 AM

I just completed a 10JA5 compactron tube SE amplifier for a friend

Milen · 6th December 2009, 09:02 AM

It is dangerous to use octal sockets for power supply. You or somebody else can touch the high voltage pins...

29th November 2009, 05:22 PM	#2653
SGregory Tubie Noobie diyAudio Member Join Date: Apr 2003 Location: Southern Tier NY	The left knob is the selector switch. The line amp will accept 3 unbalanced inputs. I am not real happy with the knob and will probably redo. Found some burr wood in our wood pile. __________________ Living Life Doing the Waltz in 4/4 meter.

1st December 2009, 01:23 PM	#2656
SGregory Tubie Noobie diyAudio Member Join Date: Apr 2003 Location: Southern Tier NY	Very nice job. The internal wiring cleanliness is an inpsiration. I assume it sounds as good as it looks. __________________ Living Life Doing the Waltz in 4/4 meter.

2nd December 2009, 02:19 PM	#2658
mckvak diyAudio Member Join Date: Aug 2009	Here is my first tube amplifier. Tubes have 300V on cathode and power of this amp is 4W per channel to 4ohm load. The weight of all amp is 10kg, it´s quite heavy for moving. I used typical europe tubes PCL86 and ECC83. Brands of tubes are TESLA so I think tubes are from Czechoslovakia. Transformers are from old radio.

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28th November 2009, 12:56 AM	#2651
tubeamp diyAudio Member Join Date: Nov 2009	do you think you have enough knobs?, very nice project T

29th November 2009, 03:07 PM	#2652
igormak diyAudio Member Join Date: Oct 2003 Location: Moscow	SGregory, very interesting design! Congrats. Left knob seems to be power switch. Is it?

30th November 2009, 02:12 PM	#2655
head1962 diyAudio Member Join Date: Aug 2008	looks nice and clean inside! and not a whole lot of components either.. the less the better, methinks gerrit

6th December 2009, 09:02 AM	#2660
Milen diyAudio Member Join Date: Apr 2007 Location: Sofia	It is dangerous to use octal sockets for power supply. You or somebody else can touch the high voltage pins...

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