Slightly modified. Stock units had two 741 op amps but the layout is modified for a dual op amp. A 1458 will do the same job as two 741s.
Tesla AYZ-033 Overdrive
Tools, Tones and Toys for Guitarists
Slightly modified. Stock units had two 741 op amps but the layout is modified for a dual op amp. A 1458 will do the same job as two 741s.