casouza
Responses from casouza
| Cary 805C Coupling caps modification Gunsur, actually coupling caps are connected between tube plate and the next tube grid. Most coupling caps are in the range range from 0.1 uF to 1 uF. Since the input gain tube and the driver tube usually run off a 300 to 400 V DC supply, 1200V Mu... | |
| How to spot a fake Oyaide plug DrArthur, I have not seen a fake M1/F1 pair yet, however counterfeiters are hard-working entrepreneurs.Your first red-alert sign to identify a fake connector or cable: a price that is too good to be true. | |
| Creek evo cdp with burson opamp mod? I have upgraded to Burson op-amps in as ASR Emitter II amplifier and a high-end CD player. This is a very worthwhile upgrade, better than monolithic op-amps in every aspect of the audio checklist. Give them a couple of hundred hours to break-in an... | |
| ARC VT100 with KT-120 tubes ? Bifwyinne:Thanks for being a good sport!More plate voltage is not very important in the context of most tube amps, because the plate voltage is fixed by design. However, the ability to take more plate current is an advantage, for the following rea... | |
| ARC VT100 with KT-120 tubes ? Howdy!Some slight technical corrections:Bifwynne, you wrote:"the KT-120's ability to handle plate current of 700V dc (versus actual bias being set at 65mV dc) is impressive."700VDC is plate voltage (Volts DC), not current. Karma16, you wrote: "Unt... | |
| Cardas-type caps or shorting plugs? HiUse shorting plugs on inputs ONLY, otherwise you may fry the preamp's output (depending on circuit configuration).On the outputs Cardas non-shorting caps are OK.The 75 ohm-loaded plugs make a great termination for that unused CD/DVD digital output. | |
| help............. The original PV10 used 12ax7, 12at7 and 5751, tubes with much higher gain than the 12au7.http://www.conradjohnson.com/It_just_sounds_right/a-PV10.htmlYou may want to cal CJ with the serial number and ask about the correct tubes for your unit.Good ... | |
| Spectral preamps Here is the technical reason why Spectral electronics MUST be used with MIT cables:Spectral's designers believe that for best sound, amps and preamps must be able to pass ultra-wide bandwidth, in the Mega Hertz range.Their preamps have no RFI filt... | |
| One off my Audiopax 88s has gone up in smoke. Brawny, I would like to point out some details that may help understand the full story:Charles purchased used 220V amplifiers from overseas and connected them to UK's 240V, which these days is closer to 250V. Of course a transformer melted down.He... | |
| Sonus Faber - Stradivari - Amp and Pre Consider TUBES to hear the Stradivari magic! | |
| Modwright LS100 versus Rogue 99 Jriggy is correct, ModWright preamps use teflon output caps. In general, teflon caps bloom after 300 hours of music (not idling). | |
| Cayin A-100T KT88 tube spec If the new tube does not reach the factory-recommended bias level, it means that the new tube is probably weak, has low Gm.New KT88s come in a wide range of Gm, from 6000 to 8500.Try to buy a matched pair around 8000 GM and 80 mA. This is just a g... | |
| Anyone heard the Ming Da MC34AB HiDO NOT remove tubes from a powered tube amplifier, the heater voltage will shoot up and probably burn the heaters of the remaining tubes. I suggest that you have the amp checked by a technician. | |
| One off my Audiopax 88s has gone up in smoke. Charles, I am glad to know that your problem has been solved. If I understand it correctly, you have received upgraded amplifiers with new, improved transformers.Audiopax has set up new service centers in Europe and the USA in order to respond fas... | |
| can mundorf supreme caps be used for AC filtering I am 100% certain that Jensen 4 pole caps are low-impedance (low ESL) caps designed for DC supplies, NOT for direct connection to AC.Digi-Key, Mouser and Newark carry plenty of X and Y rated capacitors.They are easier to find in the PDF catalog th... |