If ya look at my posts... I'm not exactly on topic....
And...all seriousness aside...(or not)...I have purchased three sets of Lorenz SEL PCC88 tubes from this vendor on e-bay:
http://www.ebay.com/itm/390528285455?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
The mail is a little slow from Vilnius [size=small]Lithuania, [/size]but the tubes are great! Frau-Olia (Olga) has more up for sale. They come without boxes but are well wrapped in bubble-wrap and in a sturdy box. I've had no problems with the shipping other than the first set was delayed (probably due to the holidays). ...And they look brand new.
Cheers!
-HK sends
PS - My power comes from caffeine and a sardonic sense of humor...
My tube tester build has started.
All new components are on the way.
606 Project Scope
Replicate circuitry of 606 using new components. Resistors, Capacitors, Pots, switches, lamps.
Provide all original testing functionality: Shorts, Quality, Grid Emission.
Eliminate all valve sockets except 9 pin.
Instal 3 discrete 9 pin sockets to accommodate ECC88, 6BN8 and 12AX7 valves.
Provide circuitry to accommodate the 9 pin valve types from a singleTypical transformer secondary.
Philips ECC88
Heater: 6.3V 365 mA
Typical Plate: 90V 15 mA (per document. I suspect 1.5 mA)
Sylvania 6BN8
Heater 6.3V 600 mA
Typical Plate: 100V 1.5 mA
GE 12AX7
Heater: 6.3V 300 mA (In Paralel)
Typical Plate: 250V 1.2 mA
Transformers.
Plate Transformer: Hammond mfg. Model 166F120 Secondary 120VAC C.T. 0.3 A
Heater Transformer: Hammond mfg. Model 166G6 Secondary 6.3VAC C.T. 0.6 A
Challenge: Engineering 250V plate voltage from a 120VAC trans. If I can't do this I will abandon the 12AX7.
Challenge: Calibrating the Dixson model 430 meter. Process, known good tubes and B&K 25 M Ohm calibration procedure.
Fabricate new enclosure and panel. Provide testing taps for multimeter and oscilloscope.
BEFORE
AFTER
And...all seriousness aside...(or not)...I have purchased three sets of Lorenz SEL PCC88 tubes from this vendor on e-bay:
http://www.ebay.com/itm/390528285455?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
The mail is a little slow from Vilnius [size=small]Lithuania, [/size]but the tubes are great! Frau-Olia (Olga) has more up for sale. They come without boxes but are well wrapped in bubble-wrap and in a sturdy box. I've had no problems with the shipping other than the first set was delayed (probably due to the holidays). ...And they look brand new.
Cheers!
-HK sends
PS - My power comes from caffeine and a sardonic sense of humor...
So, would that be a "sub-surface" postal rate?
Cheers!
-HK sends
Honestly, I have no idea. I never really thought there was a specific amount of time for a tube to settle. But it does make sense that after 100 hours, all the components in the system should be totally settled (with the exception of some headphones from Beyer and AKG) to allow some objective listening. At least I can try to use the philosophy to justify borrowing Lord Soth's tubes...and the keys to his mansion...and his credit cards (for dampers...yeah, that's it...dampers)...:veryevil:
Cheers!
-HK sends
Haha I was messing with ya man being a analog component much like some capacitors that I have seen a change in over time pretty much proven.. I would agree some amount of time on the Audiophile front is prudent.. Now for Preamp tubes same situation we have with the Lyr different tubes really make a difference in some Guitar amp designs I have one amp that is very complex it allows you to switch from A to A/B to Pentatode etc etc it does it on the fly mechanically not electronically now it works great when it works haha but its in the shop more than out..
Yeah I think I will 69 hours that sounds like a good one..
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