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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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R1 (green/brown/orange or yellow/violet/orange) needs to be paralleled with a 12k resistor to bring the loading seen by the cart to just under 100 ohms.
Brian....
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I do not read German but here is another renderation of my 834P
http://www.jogis-roehrenbude.de/Leserbriefe/Martin-Ruppel-Phonoamp/MRuppel-Phonoamp.htm
I do not know what Martin ended up with and how it sound. It looks like he use...
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Hi Romy,I read about EAR834p modifications in number of forums. And I never found any explanation how does RIAA feedback work.Only from you I heard about Miller capacity that used in this RIAA.I tried to do my calculations and as I understand the Mil...
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Dear AllI am new here, but have been reading quite a bit about the EAR834P from people here who are quite enthusiastic about this design.Thorsten had got me off my butt to build a EAR834P from scratch when he posted his mods at the AA. I still o...
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[quote user="alex"]Sorry Romy,We are
talking about pivoted tonearm with overhang. That is the geometry that
creates force to pull the cartridge toward the centre of the record. If
you take a moment to observe how anti-scate weight is at...
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Post #20:
..
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by
alex
on
2015-10-13
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[quote user="Romy the Cat"]
alex wrote:Sorry Romy,We are
talking about pivoted tonearm with overhang. That is the geometry that
creates force to pull the cartridge toward the centre of the record. If
you take a moment to observe how anti-scat...
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Hi N-set,Yes I added big cap bank to the second stage cathode. Yes it is possible to use filament power supply for fixed bias like Romy did.But I have a stereo EAR834p with a single filament PS. So, I was afraid that one PS for both channels can caus...
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Hi Paul,My question was of cause about my phonostage based on EAR834p and "End Of Live" modification with air capacitors and LCLC + 0A2 power supply.A couple weeks before I increase the second stage ECC83 cathode capacitor value to 43400uF (Kaisei no...
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This was probably discused ten thousand times before, so I hope no one will shoot me for doing it yet again. I needed to get new tubes for my EAR834P, and decided to look at the options for a change, now that prices on good Tele's have skyrocketed so...
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It's a MM/MC phono stage which at maximum gain provides 74dB. The price 329 GBP, higher if ordered with dedicated PSU, but that price includes "wallwart" AC transformer. You can take a look here: http://www.trichordresearch.com/dino.html They do...
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Recently, I have become aware of a strange phenomenon after lifting the tonearm at the end of the run-out groooves. The record surface noise keeps going when the stylus is no longer in contact with the record. I am using a Garrard 301 with SME 3...
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Hi Guy, [quote user="guy sergeant"]My experience with the 834p stemmed from having one at home for about a year soon after it was launched. I did try different types of ECC83 in it which did change it's balance slightly but not enough to make me like...
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Hi Romy,I read about EAR834p modifications in number of forums. And I never found any explanation how does RIAA feedback work.Only from you I heard about Miller capacity that used in this RIAA.I tried to do my calculations and as I understand the Mil...
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Folks,Before we discuss "high distortion" amplifiers, lets us ask what kind of SPL Romy's system produces.I don't know, so let me make some eduacated, conservative guesses.Let us assume his midrange and treble Systems are both 100db/W/m and he listen...
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Hi Alex,I am sorry, what you claim can not be. No cap is going to separate bass instruments better.The brilliance of the 834p circuit is that the EQ also uses the miller capacitance of the tubes in a very brilliant way. The power supply caps are very...
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[quote user="guy sergeant"] I don't doubt for a moment that there are plenty of people 'who know' who will wax lyrical about the benefits of open loop eq in feedback circuits. There are people 'who know' who will tell me that valve amplifiers cannot ...
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Post #18:
.
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by
alex
on
2015-10-13
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[quote user="Romy the Cat"] be wrote:Your circumference force is right, but when viewed from
above it work clocwise around the lateral bearing of the arm, therefore the arm
wil tend to move inwards :-)Soory, Be, no matter how I
look into it I can’...
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Well, below is the email that I got from the man. I feel
that he is diagnosable. I am not the Doctor House but I have been insisting for
years that any person who spent proficiently in Audio Industry some time is fully
diagnosable.
On Thursday,...
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