#31
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OH? A quote from a very well respected tube seller who rebuilds Citation gear: audioasylum.com/cgi/vt.mpl?f=tubes&m=253369
"I have been deluged lately with people asking about issues with their tube gear that they have decided for whatever reason must be the tubes. Occasionally it is, but at least 75% of the time in my experience it is not. So I wanted to make a few points and pass along a few tips to help people out. 1. The #1 cause of noise problems with tubes is poor contact between the tube pins and the socket. There are a wide variety of possible causes, dirty pins and/or sockets (in the case of a noisy new tube the socket is the PRIME suspect), socket contacts that have been stretched out or worn out and don't make good contact, or in a few cases, bad solder joints on the socket itself. A tube socket - even really good ones - are not sophisticated, high reliability connectors. You won't see tube sockets in critical applications because they simply are not reliable enough. Do yourself a favor - clean the tube pins and sockets every time you change tubes. A bottle of DeOxit D5 and a handful of good old fashioned pipe cleaners works great for octals and other large pin sockets; for the miniatures, D5 and the little tiny dental brushes for cleaning between your teeth (another drug store item) do a solid job. BTW, D5 is good to 400F - so don't lose sleep over it because of something you read on the "Hi-Fi Hysteria" forum. And it doesn't gum up either. Spray some in a paper cup and let it evaporate - you'll be able to see for yourself. Sometimes you swap a tube and the new tube is okay. so the tube you removed must be bad, right? NO! Sometimes the scraping action of removing and reinstalling a tube in that socket is enough to temporarily restore contact - and fool you into thinking you have a bad tube! KEEP YOUR SOCKETS CLEAN!! Honest - only a few % of the tubes I get back for noise are bad. Most go on to play fine in another socket." Last edited by jdandy; 05-04-2014 at 07:19 PM. Reason: Active links to other forums or blogs against the forum rules. |
#32
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Gortnipper,
This sounds like good advice, once I get that pesky screw out! :-)
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MSB platinum Signature DAC, Weiss Int202, Mac Mini Shindo Giscours, Shindo CC80's, Zingali Client Name Evo 1.5 A23 IC's and speaker cables, stillpoints Ultra SS |
#33
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Hi
I am new on this forum I'm looking for someone who has pictures of the inside of a Petrus 349A and a 349A Giscours to compare my Giscours CV391 Best regards Joscad |
#34
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What are you trying to compare?
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#35
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joscad... Welcome to AA!
__________________
Ivan FLORIDA MX136, MC1.2KW(10) MC2KW(2), MCD1100, MS750(2) MVP881, C1000C/P/T, MPC1500, HT-2 SUBS(2) HT3F(2) WS350(2) XRT2K, XCS2K, XR27(2) XCS350(2) JL GOTHAM v2 SUBS(2) SILENZIO MUSIC SERVER, LUMAGEN RADIANCE SCALER, SONY VPH-G90U 4K PROJECTOR, STEWART 120" MOTORIZED SCREEN, CINEMA-TECH SEATING, WW PLATINUM CABLES Reference System: ACCUPHASE A300 AMPS, C3900 PRE-AMP, DP1000 CD/SACD TRANSPORT, DC1000 DIGITAL PROCESSOR, DG-68 DIGITAL EQUALIZER, T1200 FM STEREO TUNER, PS1230 POWER SUPPLY, HRS-SXR CUSTOM RACK w/ M3X SHELVES, TAD REFERENCE ONE MK2 LOUDSPEAKERS, WW PLATINUM CABLES CAPE COD MX150, MC501(2) MC1.2KW(10) MC2301(2) MR88, MVP881, MCD1100, MDA1000, C1000C/P/T, MPC1500, ESOTERIC K-01X 30th ANNIVERSARY (BLACK) SACD/CD PLAYER, G02-X CLOCK, HT3F(2) XRT2K, XCS2K, XR27(2) JL GOTHAM v2 SUBS(2) JL FATHOM F113v2 SUBS(4) SOUND ANCHOR STANDS(2) KALEIDESCAPE STRATO & TERRA SERVERS 80-TB, LUMAGEN RADIANCE SCALER, SONY VPH-G90U 4K PROJECTOR, STEWART 120" SCREEN, SONUS FABER STRADIVARI, SILENZIO MUSIC SERVER, FORTRESS SEATING, WW PLATINUM CABLES Analog Rig: CLEARAUDIO INNOVATION WOOD, UNIVERSAL ARM w/ Da VINCI' CART, 2nd UNIVERSAL ARM w/ GOLDFINGER STATEMENT CART, HRS-MXR REFERENCE RACK-GLOSS BLACK w/ M3X SHELVES, AESTHETIX RHEA SIG PHONO-PRE, BRYSTON BHA-1 HEADPHONE AMP, WW PLATINUM CABLES Reference System: BURMESTER 911MK3 AMP(3), 088 PRE-AMP, 089 CD PLAYER, 100 PHONO PRE-AMP, 948 POWER CONDITIONER, ACCUPHASE DG-68 VOICING EQUALIZER, AVID ACUTUS REFERENCE SP TT, GRAHAM PHANTOM II SUPREME ARM, BENZ MICRO LP-S CART, GRANDIOSO P1X/D1X STACK, G1X RUBIDIUM MASTER CLOCK, N05 NETWORK PLAYER, SILENZIO MUSIC SERVER, HRS-SXR CUSTOM RACK w/ M3X SHELVES, SONUS FABER AIDA SPEAKERS, JL FATHOM F113v2 SUBS(2) SOUND ANCHOR STANDS(2) WW PLATINUM CABLES Library System: GRANDIOSO M1 MONOBLOCK AMPS, C1 LINESTAGE PRE-AMP, K1X CD/SACD PLAYER, G1 MASTER RUBIDIUM CLOCK, E02 PHONO-PRE, SILENZIO MUSIC SERVER, AERIAL ACOUSTICS 20T V2, AERIAL SW12 SUBS(2), CANTON REF K1’s, VPI HRX TT w/ SDS POWER SUPPLY, ORTOFON CADENZA BLACK CART, KLAUDIO RCM, SHUNYATA DENALI 6000/S v2, SHUNYATA OMEGA QR’s, WW PLATINUM CABLES Esoteric/Bryston System: ESOTERIC C02-X PRE-AMP, P-02X TRANSPORT, D02-X DAC, G02-X CLOCK, BRYSTON 28B3 CUBED MONOBLOCK AMPS(4), BRYSTON BHA-1 HEADPHONE AMP, SHUNYATA DENALI 6000/S v2(2) EVEREST 8000 POWER CONDITIONER(2) ALTAIRA CG & SG HUBS, AMR-DP777-SE DAC, SILENZIO MUSIC SERVER, TAD REFERENCE ONE MK2 LOUDSPEAKERS, QUADRASPIRE RACK, WW PLATINUM CABLES Accuphase/Canton System: ACCUPHASE E800 INTEGRATED, DP570 CD/SACD PLAYER, T1200 FM STEREO TUNER, DG-68 VOICING EQUALIZER, PS530 POWER SUPPLY, CANTON REF K3’s, CANTON REF K5’s, SILENZIO MUSIC SERVER, HRS MXR REFERENCE MAHOGHANY RACK w/ M3X2 SHELVES, WW GOLD CABLES |
#36
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Thanks
Joscad |
#37
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Giscours 391
what changes are necessary to use 349A in my Giscours
Regards Joscad |
#38
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You can't use the 349A in your Giscours. Its designed for the 391. Please don't try to modify or alter art. Its a wonderful preamp, enjoy it!
Jonathan Last edited by Vinyljh; 05-05-2014 at 01:49 PM. |
#39
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Giscours
Hi
Do you think 391 is in this Giscours is better or identical 349A? Regards Joscad |
#40
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Its is different, not better or worse. Think of them as different vintages of the same wine. Don't get hung up in the audiophile comparison game, just play some music. The best thing you can do for your Giscours is use it to the fullest. Proper amp, speakers, cables, sources, transformers etc. 99% of people never hear half of what Shindo can do from mismatched speakers and associated cables and accessories.
Where did you purchase this Giscours? Hopefully your dealer can help you get the most from it. Jonathan |
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