On Feb 9, 10:14*pm, " wrote:
Looking to buy a 3395 AM filter as used in early tube Heathkit
receivers..any other suggestions on receiving AM with homebuilt filter
system? *TNX 73 *Harold

Heathkit AM filters show up on eBay and at hamfests from time to time.

There are two types, big and little. They work in different radio's.
The big filters are from the first SB radios. SB-300 used the big
filter, the SB-301 and SB-303 used the small filter.

Within the types, there are two bandwidths available. 3.5 kHz and 5.0
kHz.

The 3.5 was the optional filter for the SB ham band receivers like the
SB-300, SB-301 and SB-303.

The 5.0 was the STANDARD filter for the SB SWL receiver like the
SB-310 and the SB-313.

Expect to pay about $30 for a 3.5 and $100 for a 5.0 filter. The 3.5
is not "full frequency" and the 5.0 is more hi-fi.

You can force fit either filter type in any SB receiver but look for
the proper size and it will bolt in.

good luck.