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Schematic

I've tried making multiple transistor latches and I'm able to get them working on the breadboard but everytime I try putting it on a prototype board the resistors changed their value. The one that acts up the most is made with two variable resistors to make 640k it's a 500k and 200k and they test properly in the prototype board if their isolated but connected to the circuit they change I'm new to transistors so I'm probably overlooking something simple. Is it possible my resistor values are wrong? I'm using two 2n2222a and a ifr905 mosfet.

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    \$\begingroup\$ A diagram would be useful. 100's of kΩ are a bit larger than one commonly employs in BJT circuits. \$\endgroup\$
    – John Doty
    Commented Feb 26 at 21:29
  • \$\begingroup\$ i added the schematic \$\endgroup\$
    – Kali Bot
    Commented Feb 26 at 21:37
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    \$\begingroup\$ T2 and T3 are backwards - the emitter of an NPN transitor should be the most negative terminal - the arrow points in the direction of conventional current flow. \$\endgroup\$
    – Peter Bennett
    Commented Feb 26 at 22:16
  • \$\begingroup\$ I swapped it around with the emitter connected to ground and the button is still unresponsive \$\endgroup\$
    – Kali Bot
    Commented Feb 26 at 23:37
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    \$\begingroup\$ the resistors changed their value? What do you mean by that? \$\endgroup\$
    – Hearth
    Commented Feb 27 at 1:17

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