I love this video! I've been wanting someone to explain circuits in just this way for some time! Thank you! Exclamation point!

Here because of Mr. Matthews’ FB group participation. My first diy pedal was a BluesBreaker style into an LPB-1. It’s still one of my favs still on my board.

Just what I was looking for. Thank you.

This is EXACTLY what I was looking for. Thank you so much!

This was totally awesome. Thanks

Really Great and useful video. Would really enjoy a video with a different boost circuit (SH-O etc) which also compares/contrasts the two circuits. The way you explain it, a boost seems quite simple and it would be interesting to know how much they can vary.

Really nice video! I would love some video talking about trasistor based overdrives, how they work and what makes them different from fuzzes

Very cool, would definitely be into a series of these vids! 👍🏻 How about showing the power section? Would be very useful info for a noob like me to see how you would go about breadboarding it, I’d like to try this at home so I could hear what influence the value changes would have… Awesome stuff!

Maybe do a video comparing the reissued circuit to the one you’re showing? I know the reissue has more caps ie: c4 & c5 that folks have been clipping off along with ferrite beads FB1 and FB2 apparently affecting the true bypass signal. This video was great for a point of reference for the original values.

Very interesting. LPB-1´s are cheap to get now, and without knowing the circuit in detail, I think it would be easy to rebuild it to a Si Treble Booster, or maybe a NPN Ge treble booster, if you can find a good Ge NPN transistor. Ge is germanium. Tschula or whatever are also very popular, so a lot of possibilities.

Excellent video. What impact does the A100k volume pot have on the circuit and its output? If the value of the pot was higher, say 250k or 500k would this makee a huge difference?

Although R2 dominates the divider in terms of current flow, the input dc blocking cap actually sees the parallel combination of r1 and r2….

Well, that was useless. No facts or figures, just anecdotes and adjectives. Here’s some useful info. The max voltage gain Av=(R4||Rpot)/R3, a bit over 23 or almost 28 dB. The input filter cutoff frequency fc=1/(2piR1C1) which, for the components shown, is 37 Hz. The transistor base bias voltage, formed by voltage divider R1and R2 must be greater than the transistor’s emitter-base voltage Vbe, aka it’s turn-on voltage, which is around 0.7 V for BJT transistors. Vb=(V+)-(V+)/(R2+R1)*R1, or around 0.81 V for the values shown. Stay in school.