betsy wow and ribbon

[adason]

There is no low pass on betsy, just bsc as i wrote. There is just one cap 2uF on the ribbon, as high pass 1st order, crossover point ~8kHz.
I can try to dig out just the betsy with bsc, if i have it. But the speakers are now being painted, disconected. I can measure it later, if i do not find it.
I am working on small jlh amp now.

 

[GM]

My rough estimate would be 26.5mm.

Thanks for confirming.

GM

 

[kec]

Nice job adason May have to try this.

 

[adason]

If you do, let me know, i have one more of those polished brass phase plugs (legs).

 

[lowmass]

There is no low pass on betsy, just bsc as i wrote. There is just one cap 2uF on the ribbon, as high pass 1st order, crossover point ~8kHz.
I can try to dig out just the betsy with bsc, if i have it. But the speakers are now being painted, disconected. I can measure it later, if i do not find it.
I am working on small jlh amp now.

Ok no thats fine what u gave is all I need thanks

 

[diyiggy]

Well done Adason,
So the curve behind the XO is tilting down 6 db octave, first order. So at 4000 Hz, I iassume the tweeter is around 4 to 5 dB higher than the Betsy which explain the little slope in the sensible area... sort of A3 OR Dunlavy...but totally free of xo in the mid this time. Cool unit. I'm going ro check the two drivers data to learn more ... 🙂

Thank you for your sharing

 

[adason]

no point of shimulating, you can't listen to shimulated speaker
start building

 

[diyiggy]

thank you for shimming 😀

 

[adason]

someone is selling betsy in swap meet right now...

 

[adason]

almost done!