This is THE David Gilmour sound!
For sale is an original BSM Model OR Finest Treble Booster guitar effects pedal with original germanium transistors . This is THE pedal to get that “David Gilmour” sound, and it sounds awesome! Pedal is used, has some cosmetic wear and velcro on the back but is mechanically and electrically sound and works perfectly. Also note, there is an opening routed out to use a 9v power supply adapter cable (in place of the 9v battery) for use with modern pedalboards.I bought this years ago and used it sparingly, mainly for (of course) Pink Floyd covers. Selling off all my gear so now it has to find a new home. There are very rare and this one is complete with box, paperwork, and the original knob. I have included some info on BSM and why these pedals are so special, don’t miss out on this! Sold as is.BSM is a small German company that carefully builds reissues of vintage Treble Boosters using NOS parts. Although the insides of the pedals are faithful reproductions, BSM uses more practical smaller (and lighter) housings for their units, to meet the wishes of today’s players.About Treble BoostersIn the sixties and seventies, before the invention of overdrive pedals like the Tube Screamer, (treble) boosters were the only way of pushing a guitar amp into overdrive, increasing the tone’s dynamics and clarity, especially when using lower output guitar pickups like single coils or PAF style humbuckers. The vast majority of rock bands used these kind of circuits. Famous users are, for example, Brian May, Tony Iommi, David Gilmour, Rory Gallagher, Ritchie Blackmore and Gary Moore.Although treble boosters became less common from the late seventies onward, they still are a great way of getting the most out of your guitar’s and amp’s sound, achieving a very natural and dynamic overdrive. Treble boosters are currently becoming rediscovered by many guitarists and the prices of vintage units are going sky high.Although there are not many parts in a Treble Booster circuit, there are many sound differences between various models. An important reason for these differences are the type of transistors that are used to amplify the sound: they greatly influence the behaviour of the pedal. The great sounding (and hard to find) germanium transistors in the vintage units are one of the reasons these are becoming so sought after and expensive.What is inside a BSM Booster?BSM uses only New Old Stock germanium transistors manufactured 30 to 40 years ago in Germany (Valvo, Philips, Tungsram – models OC44 or OC76) exactly like the original Treble Boosters that are much sought after by tone connoisseurs. Other manufacturers often use more commonly available non-original germanium transistors like the AC122, AC128, AC153, 2N508 and NTE102, that are way cheaper.In addition, BSM carefully selects the OC44 (about 50% are rejected) and OC76 (about 30% are rejected) used in its units. After careful assembly and thorough testing, the circuit is soaked in a ball of resin and allowed to dry for 3 days. This ensures that the circuit will not be subject to outside temperature fluctuations which made the originals notoriously unreliable.About the BSM Model ORThe BSM OR model is based on the Orange Treble & Bass booster made in the late 60’s in England. It uses a OC76 germanium transistor, the same as the original 1960’s version. Famous users of the original include Wishbone Ash’s Ted Turner and Andy Powell, while David Gilmore also used one on Umma Gumma, Meddle and The Dark Side of the Moon. The OR model includes a tone control which allows an extraordinary amount of versatility. When set to maximum, the unit produces a very glassy tone. When a middle setting is dialed in, the result is a punchy tone with a mids emphasis. When set to minimum, the unit produces a very bassy tone with a fat bottom end. With the OR model, the emphasis is very much on tone shaping. The volume jump is fairly gentle, compared to some other BSM models. The broad-frequency gain boost really helps to find the sweet spot of the guitar and amp’s responses. Specifications:Average output level: 9 dBm Maximum output voltage: 7V, when the strings are struck really hard. Knob: controls the frequency that is pronounced Switching: True bypass when switched off Power: 9V battery; can use 9v adapter cable