Suitable Easy To Find MPF105 Replacements

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8/19/2000 7:34 AM

Alvaro Salinas

Suitable Easy To Find MPF105 Replacements I need a easy to find JFET for the TREMOLO PROJECT from an australian magazine. RG posted a modded Tremolo of the original one from the magazine   Also How could affect the transistor GAIN in the tremolo effect. I plan to use the BC549's instead of the suggedted 2N5088,89 by R.G. But BC's are more than NOISIER, and tremolo is not recognized to be a NOISY effect.. Should i have to Try the 2n3904 transistor to keep it more cleaner   well Film caps will do better ...       Thanks

 

8/19/2000 1:50 PM
Steve Daniels (Small Bear Electronics)	Sr. Salinas:     If you want 2N5088s or 5089s, I will send them to you at US $ .30 each plus actual postage and a handling charge of $6.00. You can pay me with an international postal MO. Look in the Mouser on-line catalog (www.Mouser.com) and see if there is anything else you need, then drop me an E-message.     Regards

 

8/23/2000 6:46 AM

Pete

Alvaro,     You could more than likely use an MPF102 in place of an MPF105. Most circuits aren't that critical. If you really want MPF105's they're avaialable from Jaycar electronics http://www.jaycar.com.au. They ship internationally too.     As for BC549's, if you're using BC549B, they're noisy, BC549C is a low noise variant. Best off use 2N3904's if you can get them, easier to find than a BC549C     Pete

 

8/24/2000 8:00 AM
geoff_w	2N5485 is what i used in mine. (also available from jaycar or dicksmiths for any aussies)     I found the preamp transistor (a bc549) was overdriving and its not pretty so i added a variable pot, a la 'bias control', in front of the input. cleaned up fine.     Geoff_w.

 

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