Vintage Altec Madrid 872a pair on eBay, starting at $90 - Ga

[Elitopus1]

Yeah I was thinking since those were the same motor as 416a, that the 420b would have the same motor as 416b.

How do you like the 420b compared to the 420a Phil?

[bowtie427ss]

I assume that apart from the cone and foilcal, all else is the same as 416B.

[Phil-G]

Yeah I was thinking since those were the same motor as 416a, that the 420b would have the same motor as 416b.

How do you like the 420b compared to the 420a Phil?

they have the same frames as the B but not the magnet cover. i really couldn't hear a difference.

[Elitopus1]

I need to keep an eye out for some blown 420B so I can get me some cheap 416-8B
The real ones are going for too much money.

I want to build some Model 19 but use Emilar Bowtie horns in place of the 811

[GM]

Since they are the "A" version, they should have 420-Y's with the coaxially mounted tweeter.

Thanks! Never seen this version, only with no tweeter or the separately mounted one.

GM

[bowtie427ss]

Here's a good hi res shot showing the litz wires connecting the tweeter, and the famous Callins wax sealed cap.

[Elitopus1]

Is that cap the only crossover network for the tweeter?

[Phil-G]

Is that cap the only crossover network for the tweeter?

thats what i do with my biflexes. just like the EPI 100s

i would post pics of the 16" 420s but i'll have to find a way other than hostboard.

[bowtie427ss]

thats what i do with my biflexes. just like the EPI 100s

i would post pics of the 16" 420s but i'll have to find a way other than hostboard.

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Is that cap the only crossover network for the tweeter?

Same cap and terminal strip you'd find mounted to the baffle next to the tweeter in an 879A Santana, that's all there is.

[Phil-G]

here you go