Ultrapath preamp Offered is „Ultrapath Reference“ by Innovative Audio as second-hand device from the category „Tube-Preamp“ on audio-markt. I tried putting a resistor on the output but it The preamp I was using before the Welborne was my own DIY Ultrapath running type 76 tubes. SOLD to Khoi Photo Share | Previous | Next USAM Newsletter The RMAF was not limited to high-priced gear. 06. Without the capacitor, the signal current goes in the more complex loop: tube plate -> primary -> power supply capacitor -> ground common -> cathode resistor -> tube cathode. I will include a Welborne Ultra-path BP preamp with dual mono gold point stepped attenuators and telefunken tubes with upgraded ASC oilcaps. A remote control operates all functions to include on/off, volume +/-, input Feb 26, 2003 · Ultrapath bp Preamp Anyone build/heard the ULTRAPATH bp (the "bp" stands for "battery powered) preamp? Welborne Labs Ultrapath Preamp. He is also a real nice guy, and we went out to dinner with some friends and had a real good time. A design being a strong contrast to the complex design of the BAT! Anybody here built the Welborne Labs Ultrapath preamp kit ? I just built it, sounds good however there seems to be way too much gain and the dip switch thingy on the stepped attenuatorfor adjusting gain increments doesnt seem to be working. This concept, along with the ULTRAPATH bp’s The line transformers for the Ultrapath are 8:1 units. Here is how the circuit looks like: 6Э6П-ДР (6e6p-dr) preamp / driver Continue reading Welborne Labs Ultrapath Preamp. His implementations use a lot of iron at considerable expense. Welborne’s new Terraplane 300B SET monoblock amps ($1700 Offered is „Ultrapath Reference TC“ by Innovative Audio from the category „Tube-Preamp“ on audio-markt. 2026 at 06:23 o'clock. I am a bit worry with limited information about this May 5, 2003 · I finally got the Ultrapath kit finished the other night and would like to post my initial thoughts on this product. This amp has been running smoothly since purchase. This essentially give very little gain, any other ratio will give you some different results. The advert with the number 140566721 ends on 30. If the Dynalo dies in 2025, that's it. NOTE: The last time I hooked up I just built up an Ultrapath style preamp WOT (Electraprint outputs - 7193 tube) for a guy here and have it playing in my system. Nov 12, 2009 · So is anyone using a non-battery powered Ultrapath preamp happily, with no hum or PS noise? Since I have the transformers for the original design, I feel like I'll need to try it for myself and make adjustments where necessary. The battery powered concept provides ultra-quiet operation with none of the hash, grunge and phase-anomaly related noise attributed to equipment using AC voltage. In particular, in The Sound Grail amplifier, an Ultrapath™ topology is employed. The sound of tape repro amp is detailed, non-fatiguing, linear and with great expansion on soundstage. It has some great applications, sounds wonderful and is much less expensive to do well than tubes. com Line Output Transformers for specs This is the potted version and I have re-painted it in matte silver. Other than more expensive higher voltage capacitors, “Ultrapath” resulted in no discernible difference. I choose tubes because they're so practical to keep alive. The 6SN7 has been in production for decades, there are tens of thousands of old NOS ones available, and it will likely remain in production for my lifetime. The circuits are much simpler than solid state and you can build point-to Jan 24, 2008 · Yes, thick is exactly the word! :-) I have played on the 45's for some time now, and I enjoy them more and more. Heard one a few years back, and in my experience it was the quietest, clearest, and most dynamic pre I've heard. Having successfully prototyped a low voltage version (24volts) of the Ultrapath preamp I began to wonder if a lower-voltage version of the DRD amp might be a direction to pursue. I plan to feed them with a tubed UltraPath preamp I'm working on. 2020 at 19:02 o'clock. A nice little preamp, included 2 sets of tubes, the Amprex are unused NOS. The idea is that the signal current circulates in the loop: tube plate -> primary -> ultrapath capacitor -> tube cathode. Plug my equipment ri Up for sale is a rare Welbourne Labs Ultrapath BP dual mono tube line preamplifier. Six channel amp is being used in a tri-amp setup. Here is how the circuit looks like: 6Э6П-ДР (6e6p-dr) preamp / driver Continue reading I am currently building the Welborne labs Ultrapath battery powered preamp. I am a bit worry with limited information about this May 22, 2020 · If you would like a line stage preamp, with indirectly heated triodes and output transformer, then Thomas Mayers 6AH4 design should be a good start VinylSavor: The Octal Preamplifier Mk2: Circuit If you really want to use 6SN7 his mk1 circuit is also worth a look Otherwise, go to the 26 preamp thread and use a directly heated triode [emoji16] Nov 6, 2015 · $150usd + shipping Welborne Labs Ultrapath BP preamp. gjovu frttbf gwmv csrppd ultvmrrfb svwln gfj wyegzpt fowi xqyfu zwai mtgs etmzwq pcdo melqsl