It's likely PUI use the same FET in all their different capsules so the resistors you used in your PUI 5024 (and those in simpleP45.pdf) are also appropriate for your PUI 5241s
It's likely your problems with 5024 are not cos they are omni but that they are VERY sensitive.? Cardioids will pick up MUCH more wind noise and also handling, clothes rustling etc in a lavalier.? And the proximity effect is terrible for voice.??
This is the biggest sin in amatuer and many pro PA systems.? All you hear is, "woo .. Woo..WOO"If your lavalier is for voice, my recommendations are
- use the omni PUI 5024
- get the lavalier high up, as close to the mouth as possible.? Lapel mikes can get closer but are more affected by the speaker looking away.
- use a windshield; eg one of your mini deadcats :)
- severely roll-off the bass.? Start with C1 = 100n and expect to go even smaller.
More recent datasheets for these electrets usually show specs for Vds 3V or even 1V5. Cos main use is smart phones & other Low Voltage devices, they have to guarantee performance at low voltages.
They invariable give much better performance at 5V and there are significant improvements at even higher voltages up to about 10V when some early LN NEC FETs will die.
?
Older, traditional datasheets for same device, will show performance at 5V or 10V and have a 'Reduced Voltage' spec with the deterioration of Sensitivity at 1V5 usually 1.2 ¨C 3.5dB
