The 8Ω speakers I initially ordered from Element 14 arrived today, in their usual & efficient manner.
But I'm wondering whether they are actually the correct impedance for my 32.
I've been comparing the schematics of the two early main boards - the initial 'Bees had 8Ω speakers before switching to 50Ω.
The audio part of my 'Bee looks like the earlier 8Ω speaker circuit ... R27 is a big, beefy ... 1/2W? ... 27Ω resistor ... and not a 220Ω resistor in the 50Ω speaker circuit.
I decided to use a detachable cable to make it easy to remove the main board without having to unscrew the speaker.
From the marks on the speaker grill, this is the one that had the unknown-impedance speaker jammed in upside-down and then glued to the speaker grill, whereas the one I have that is clearly marked 50Ω is from a Series 2 Educator I have. I'm working on both at the same time.
But I'm wondering whether they are actually the correct impedance for my 32.
I've been comparing the schematics of the two early main boards - the initial 'Bees had 8Ω speakers before switching to 50Ω.
The audio part of my 'Bee looks like the earlier 8Ω speaker circuit ... R27 is a big, beefy ... 1/2W? ... 27Ω resistor ... and not a 220Ω resistor in the 50Ω speaker circuit.
I decided to use a detachable cable to make it easy to remove the main board without having to unscrew the speaker.
From the marks on the speaker grill, this is the one that had the unknown-impedance speaker jammed in upside-down and then glued to the speaker grill, whereas the one I have that is clearly marked 50Ω is from a Series 2 Educator I have. I'm working on both at the same time.