Just finished up a special Bottlehead Crack build I call the Coppermine Crack. This build took a bit of work: I mitered and routed the wood base, then copper leafed it, which is a fun experience if you haven't tried it. The plate of the amp is 12" x 12" x 0.1" copper. Some changes from the stock build are the 6SN7 signal tube, the excessive use of film caps for power and coupling, and a pair of oversized chokes. Hope you enjoy the pics.
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For a detailed rundown of the build and more pics, visit:
DIY Audio Electronics from Zynsonix.com: Bottlehead Crack Coppermine Edition
Congratulations is a Roccoco style. Good for listen Haydn and Mozart...
If I show it to my wife, probably she wanna ask for get one. She is a classical girl...
Mighty Midget
Even though I built this a while ago, I haven't really listened to it. I plugged it up a few days ago to some so-so speakers and it's been on non stop. It really sounds good to me. So glad I built it. It's Pete Millett's "Mighty Midget" SE 6T10 compactron tube amp.
Tom
Even though I built this a while ago, I haven't really listened to it. I plugged it up a few days ago to some so-so speakers and it's been on non stop. It really sounds good to me. So glad I built it. It's Pete Millett's "Mighty Midget" SE 6T10 compactron tube amp.
Tom
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Ventilating electrons...
Beautiful afternoon taking the air, one connection to the loudspeakers and enjoying the life in a live music session. Tell us please how it sound
Even though I built this a while ago, I haven't really listened to it. I plugged it up a few days ago to some so-so speakers and it's been on non stop. It really sounds good to me. So glad I built it. It's Pete Millett's "Mighty Midget" SE 6T10 compactron tube amp.
Tom
Beautiful afternoon taking the air, one connection to the loudspeakers and enjoying the life in a live music session. Tell us please how it sound
Even though I built this a while ago, I haven't really listened to it. I plugged it up a few days ago to some so-so speakers and it's been on non stop. It really sounds good to me. So glad I built it. It's Pete Millett's "Mighty Midget" SE 6T10 compactron tube amp.
Tom
What are the tubes.
What are the tubes.
The Compactron 6T10
6T10, Tube 6T10; Röhre 6T10 ID5095, Double Pentode
The amp info may be found here - http://pmillett.com/midget.htm
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I built the Spare Time Gizmo 6T9 amp. In fact I built two of them. Sold both. I have a few pairs of tubes but I understand they are now hard to get. I found some old images of them. A better tube is the 6EM7. I have built two amps with these. Extremely good sounding. 6EM7 amp is the yellow top (Sun Gold) and the monoblocks.
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I am new here, been lurking for a while...
This group is full of creative well informed people. Recently I was commissioned to make a "steam punk" blue tooth docking station. The client loved it and his father now wants one. So I figured I would post it here for review.
This was the first custom made amplifier I have done since thirty years ago when I made a few dozen guitar amps for spare money when I was a kid.
This group is full of creative well informed people. Recently I was commissioned to make a "steam punk" blue tooth docking station. The client loved it and his father now wants one. So I figured I would post it here for review.
This was the first custom made amplifier I have done since thirty years ago when I made a few dozen guitar amps for spare money when I was a kid.
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I couldn't help doing the Edison label, just couldn't resist.
The fan shaped thing acts a cradle for the Bluetooth device the listener is using (I pod, I pad,smart phone etc.).
The ... um...er...'tubes' on the left make up the display of the pnp/npn color organ.
It looks cool, and sounds very good, no hissing, hums, defined highs and non colored bass.
The sound on the video is awful but in real life the sound is sweet.
Here's a link to the video to see the Jules Verne display in action....
http://www.youtube.com/watch?v=Y_UsNIS5rhQ
The fan shaped thing acts a cradle for the Bluetooth device the listener is using (I pod, I pad,smart phone etc.).
The ... um...er...'tubes' on the left make up the display of the pnp/npn color organ.
It looks cool, and sounds very good, no hissing, hums, defined highs and non colored bass.
The sound on the video is awful but in real life the sound is sweet.
Here's a link to the video to see the Jules Verne display in action....
http://www.youtube.com/watch?v=Y_UsNIS5rhQ
Beautiful afternoon taking the air, one connection to the loudspeakers and enjoying the life in a live music session. Tell us please how it sound
Long story short. I have been a live sound engineer for the last 37 years. Never really had a decent stereo, never turned the radio on in my truck, never plugged earbuds in to my phone. Sound is my career, my job. Big point source boxes back then, mostly line arrays now a days. I know how to listen to that. Don't get me wrong. It can be very passionate, very personal, but I kinda forgot about the music. Got in to diy stuff a couple years ago. Built this amp from Pete Millett. Great pcb, bom, advice. I've "listened" to more music in the last week than in the last 10 years. So how does it sound? To me, perfect.
It's hard to beat single end tube amps especially SE UL pentode amps. Just my opinion guys. Though my main amp is an imposing 300B SE ($4K for parts alone) when recently I built an EL34 SE UL I realised how much closer the music these simple amps can get. My 300B SE (Silver Dragon) almost has too much detail which can be a little distracting while listening. As I said, just my opinion after 46+ years of DIY audio. Here's an image of the Silver Dragon (PS separate and not shown). The power tubes are TJ Full Music limited edition carbon plates.Long story short. I have been a live sound engineer for the last 37 years. Never really had a decent stereo, never turned the radio on in my truck, never plugged earbuds in to my phone. Sound is my career, my job. Big point source boxes back then, mostly line arrays now a days. I know how to listen to that. Don't get me wrong. It can be very passionate, very personal, but I kinda forgot about the music. Got in to diy stuff a couple years ago. Built this amp from Pete Millett. Great pcb, bom, advice. I've "listened" to more music in the last week than in the last 10 years. So how does it sound? To me, perfect.
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The original schematic has been around for quite a while and I built two of them. Virtually takes any tube: KT88, EL34, 6L6, 6V6 etc. But I asked guys on the diyaudioprojects forum to tweak the original. The posted schematic here is the result. I only used EL34 tubes in it in UL mode. A friend who had a number of Chinese PP amps took one listen to my amp (retro-34UL) and bought it on the spot. I wasn't intending to sell it. I'd only had it a week. The PS design is mine.mhouston,
do you have a schematic of your UL EL34SE?
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I just assembled two of Oatley Australia's latest iterations of their famous headphone amps the K272C. Separate filament and B+ batteries and battery "health" LEDS for each. Now the kit comes with an OPA2134 chip. Better bass, better sound. The ABS plastic enclosures are Al lined and wire-wrap wire is used in the signal path. Switched 6.5mm phone jacks and power switch ensures little chance of leaving it on when not in use.
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It's hard to beat single end tube amps especially SE UL pentode amps. Just my opinion guys. Though my main amp is an imposing 300B SE ($4K for parts alone) when recently I built an EL34 SE UL I realised how much closer the music these simple amps can get. My 300B SE (Silver Dragon) almost has too much detail which can be a little distracting while listening. As I said, just my opinion after 46+ years of DIY audio. Here's an image of the Silver Dragon (PS separate and not shown). The power tubes are TJ Full Music limited edition carbon plates.
what are those chrome thingy next to the tube?
and what are their purpose?
I would like to say they are resonance dampeners but they aren't. They purely ornamental. They are chrome draw knobs. Who knows maybe they do dampen resonances??what are those chrome thingy next to the tube?
and what are their purpose?
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