The Newton 300B
- Thermionic Idler
- Old Hand
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- Location: Southsea
#46 Re: The Newton 300B
In action - bit tricky getting it all in focus as it's so big. And yes, I know I need to get the labels off the 300B's - I was that impatient to get it going.
We were listening to it last night well into the early hours - it's really quite a sublime sounding thing, can definitely recommend the circuit. No nasty noises or smells - and the humbucker control seems to be largely redundant, hum is only just barely audible with your ear in the speaker, over much of the range.
We were listening to it last night well into the early hours - it's really quite a sublime sounding thing, can definitely recommend the circuit. No nasty noises or smells - and the humbucker control seems to be largely redundant, hum is only just barely audible with your ear in the speaker, over much of the range.
Deck: Garrard 301 - Audio Origami PU7 - NW Analogue DH3S
Phono: Pete Millett LR, Lundahl SUT, AMB σ22 PSU
Linestage: Bruno Putzeys Balanced Pre + Hans Polak relay mod, LCDuino control
Power amps: 300B PP 'Symmetric Reichert'
Speakers: FF225WK Big Mets
Phono: Pete Millett LR, Lundahl SUT, AMB σ22 PSU
Linestage: Bruno Putzeys Balanced Pre + Hans Polak relay mod, LCDuino control
Power amps: 300B PP 'Symmetric Reichert'
Speakers: FF225WK Big Mets
- Cressy Snr
- Amstrad Tower of Power
- Posts: 10581
- Joined: Wed May 30, 2007 12:25 am
- Location: South Yorks.
#47 Re: The Newton 300B
That is an absolutely stunning piece of work Dave.
Shoddy doesn’t begin to describe it.
Shoddy doesn’t begin to describe it.
Sgt. Baker started talkin’ with a Bullhorn in his hand.
- Thermionic Idler
- Old Hand
- Posts: 1018
- Joined: Sun Apr 22, 2012 8:22 pm
- Location: Southsea
#48 Re: The Newton 300B
Thanks Steve - M and I were talking last night and when lockdown is over we'd love to hear them with your latest sealed unit speaker creations.
I had hoped to have them both done by now, but as always these things take longer than one expects, and now I have work getting in the way again. So the next challenge is carving out a time window to get the other one finished sooner rather than later as we really want to hear this in full stereo.
I had hoped to have them both done by now, but as always these things take longer than one expects, and now I have work getting in the way again. So the next challenge is carving out a time window to get the other one finished sooner rather than later as we really want to hear this in full stereo.
Deck: Garrard 301 - Audio Origami PU7 - NW Analogue DH3S
Phono: Pete Millett LR, Lundahl SUT, AMB σ22 PSU
Linestage: Bruno Putzeys Balanced Pre + Hans Polak relay mod, LCDuino control
Power amps: 300B PP 'Symmetric Reichert'
Speakers: FF225WK Big Mets
Phono: Pete Millett LR, Lundahl SUT, AMB σ22 PSU
Linestage: Bruno Putzeys Balanced Pre + Hans Polak relay mod, LCDuino control
Power amps: 300B PP 'Symmetric Reichert'
Speakers: FF225WK Big Mets
#49 Re: The Newton 300B
Very tasty Dave!
- Thermionic Idler
- Old Hand
- Posts: 1018
- Joined: Sun Apr 22, 2012 8:22 pm
- Location: Southsea
#50 Re: The Newton 300B
Thanks Ali - very pleased with it. After running OTLs for the best part of 8 years, it has me re-evaluating output transformer coupling for sure.
Deck: Garrard 301 - Audio Origami PU7 - NW Analogue DH3S
Phono: Pete Millett LR, Lundahl SUT, AMB σ22 PSU
Linestage: Bruno Putzeys Balanced Pre + Hans Polak relay mod, LCDuino control
Power amps: 300B PP 'Symmetric Reichert'
Speakers: FF225WK Big Mets
Phono: Pete Millett LR, Lundahl SUT, AMB σ22 PSU
Linestage: Bruno Putzeys Balanced Pre + Hans Polak relay mod, LCDuino control
Power amps: 300B PP 'Symmetric Reichert'
Speakers: FF225WK Big Mets
#51 Re: The Newton 300B
Must get my 300b's out of storage, been on OTL's for the last few years too.
#53 Re: The Newton 300B
That's a super job Dave. Now I'm missing my 300B PP!
- IslandPink
- Amstrad Tower of Power
- Posts: 10041
- Joined: Tue May 29, 2007 7:01 pm
- Location: Denbigh, N.Wales
- izzy wizzy
- Old Hand
- Posts: 1496
- Joined: Fri Nov 02, 2007 7:02 pm
- Location: Auckland NZ
- Contact:
#55 Re: The Newton 300B
Inspiring build Mr Idler. Glad it's worked out so well.
- Dave the bass
- Amstrad Tower of Power
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- Location: NW Kent, Darn Sarf innit.
- Cressy Snr
- Amstrad Tower of Power
- Posts: 10581
- Joined: Wed May 30, 2007 12:25 am
- Location: South Yorks.
#57 Re: The Newton 300B
Yes, that’d be good.....Thanks Steve - M and I were talking last night and when lockdown is over we'd love to hear them with your latest sealed unit speaker creations.
Sgt. Baker started talkin’ with a Bullhorn in his hand.
- Thermionic Idler
- Old Hand
- Posts: 1018
- Joined: Sun Apr 22, 2012 8:22 pm
- Location: Southsea
#58 Re: The Newton 300B
I think I'm going to have to buy them their own sack trolley though - my God they're weighty!Cressy Snr wrote: ↑Tue Jan 05, 2021 10:51 amYes, that’d be good.....Thanks Steve - M and I were talking last night and when lockdown is over we'd love to hear them with your latest sealed unit speaker creations.
Deck: Garrard 301 - Audio Origami PU7 - NW Analogue DH3S
Phono: Pete Millett LR, Lundahl SUT, AMB σ22 PSU
Linestage: Bruno Putzeys Balanced Pre + Hans Polak relay mod, LCDuino control
Power amps: 300B PP 'Symmetric Reichert'
Speakers: FF225WK Big Mets
Phono: Pete Millett LR, Lundahl SUT, AMB σ22 PSU
Linestage: Bruno Putzeys Balanced Pre + Hans Polak relay mod, LCDuino control
Power amps: 300B PP 'Symmetric Reichert'
Speakers: FF225WK Big Mets
#59 Re: The Newton 300B
That looks great dave..
The tube manual is quite like a telephone book. The number of it perfect. It is useful to make it possible to speak with a girl. But we can't see her beautiful face from the telephone number
- Thermionic Idler
- Old Hand
- Posts: 1018
- Joined: Sun Apr 22, 2012 8:22 pm
- Location: Southsea
#60 Re: The Newton 300B
More listening into the early hours tonight, so I'm going to be like a dead duck in the morning - again. I really need to get this thing back onto a space near the bench with the base off so that I can use it as a visual reference to quickly get the second one finished, but I can't stop listening to it. Maybe mono is where it's at...
One of the things I'm noticing is that you don't have to listen to reference recordings to hear its benefits. Everything sounds right - we had some old Kay Kyser recordings playing earlier - these were either 70's or 80's transfers onto LP which pre-dated all the awful intrusive digital "clean-up" efforts - and they somehow just sounded right. Maybe it was the signal chain consisting entirely of 30's era valves - who knows.
Tomorrow - tomorrow I'll get it back on the bench.
One of the things I'm noticing is that you don't have to listen to reference recordings to hear its benefits. Everything sounds right - we had some old Kay Kyser recordings playing earlier - these were either 70's or 80's transfers onto LP which pre-dated all the awful intrusive digital "clean-up" efforts - and they somehow just sounded right. Maybe it was the signal chain consisting entirely of 30's era valves - who knows.
Tomorrow - tomorrow I'll get it back on the bench.
Deck: Garrard 301 - Audio Origami PU7 - NW Analogue DH3S
Phono: Pete Millett LR, Lundahl SUT, AMB σ22 PSU
Linestage: Bruno Putzeys Balanced Pre + Hans Polak relay mod, LCDuino control
Power amps: 300B PP 'Symmetric Reichert'
Speakers: FF225WK Big Mets
Phono: Pete Millett LR, Lundahl SUT, AMB σ22 PSU
Linestage: Bruno Putzeys Balanced Pre + Hans Polak relay mod, LCDuino control
Power amps: 300B PP 'Symmetric Reichert'
Speakers: FF225WK Big Mets