I made a superregen similar to the circuit shown here:

If I added a transistor push-pull amplifier such as this one:

I can get good sound quality with proper adjustment of the 330k resistor in the first circuit.

What I want to do is replace the right-most transistor in the first circuit and the entire second circuit with an op-amp or two but I am unsuccessful at achieving the same gain.

I even tried putting my amp into this configuration (ignore D1, C1, L1, antena and earphone):

and I tried omitting R1 and then using 1M for R1. I even tried swapping the input connections. When I connected the +ve input to ground and -ve to the signal output (fed through a capacitor and resistor in series), the whole thing just oscillated at one tone regardless of what the superregen circuit was doing. If I made the signal resistor higher than 180 ohms then the oscillation gets worse.

I'm not sure if my amplifier choice is correct but I want one that can behave like two transistors in a common-emitter amplifier configuration that can produce high gain without oscillation.

I tried LM386, Lm358 and LM741. What amplifier model would be best for this and how should I set it up? because I'm thinking maybe my receiver is extra sensitive where I need something to limit the remote signal from messing with the receiver.

 

I made a superregen similar to the circuit shown here:

If I added a transistor push-pull amplifier such as this one:

I can get good sound quality with proper adjustment of the 330k resistor in the first circuit.

What I want to do is replace the right-most transistor in the first circuit and the entire second circuit with an op-amp or two but I am unsuccessful at achieving the same gain.

I even tried putting my amp into this configuration (ignore D1, C1, L1, antena and earphone):

and I tried omitting R1 and then using 1M for R1. I even tried swapping the input connections. When I connected the +ve input to ground and -ve to the signal output (fed through a capacitor and resistor in series), the whole thing just oscillated at one tone regardless of what the superregen circuit was doing. If I made the signal resistor higher than 180 ohms then the oscillation gets worse.

I'm not sure if my amplifier choice is correct but I want one that can behave like two transistors in a common-emitter amplifier configuration that can produce high gain without oscillation.

I tried LM386, Lm358 and LM741. What amplifier model would be best for this and how should I set it up? because I'm thinking maybe my receiver is extra sensitive where I need something to limit the remote signal from messing with the receiver.

Just take out Q2 and its 2 resistors and connect the input to the 0.01uF capacitor - you might even get away with something like an LM386 - I'd go for a TDA7050 BTL amplifier - It'll give pretty good volume with as little as 5V Vcc. The part with the A suffix has DC volume control, so no pot loading the RF section.

If it does turn out not loud enough - just leave Q2 in and feed the amp chip from its collector.

PS: a super-regen goes fully into oscillation and then quenches - radiating from the antenna is an occupational hazard. A grounded base input buffer stage can isolate the antenna from the oscillator. You can use a 1k resistor for the emitter, but it works best if the collector drives the main tank L/C.

Actually a grounded gate JFET RF input buffer is even better - and simpler.

 

If you want to omit Q2, then why dont you use a power amp like the Tda2030 /40 series, and feed the signal from the 22K resistor that feeds the base of Q2 (first circuit), you wil have to use a power source like a 12V battery thats capable of 2amps or more, download the datasheet for the power amp, that will give you a better understanding, or buy a ready made amplifier on ebay.

 

If you want to omit Q2, then why dont you use a power amp like the Tda2030 /40 series, and feed the signal from the 22K resistor that feeds the base of Q2 (first circuit), you wil have to use a power source like a 12V battery thats capable of 2amps or more, download the datasheet for the power amp, that will give you a better understanding, or buy a ready made amplifier on ebay.

I'm guessing the TS's 9V battery is probably a PP3 - a TDA2030 might not be very practical.