Apologies if this post seems a little off subject!
I have an FT817, (early model, not ND), and it hasn’t been used for about 3 years. The battery pack (NiCad FNB-72) has not been charged in this time. The voltage measured(with DMM) is currently 7.28V. Will this battery be ok to be used? Will it come back to life with a few charges or do I run the risk of damaging the FT817’s charging circuit? Also, I note that Yaesu now supply the FNB-85 NiMH battery pack with the ND model, is this newer battery pack compatible with the earlier FT817? Is the charging circuit different to accomodate NiMH’s instead of NiCads?
I have just been given a dummy load, which was being discarded at work. The sticker says it is a Radiall R404881000, 80w convection cooled/120w conduction cooled, 50 ohms, 0-4GHz. I cant seem to find much about it on the internet. To look at it just looks like a large finned heatsink with a N-type connector. What I would like to know is is this suitable for amateur use? I know it says 0 to 4 GHz, but does this really mean it will safely present a 50 ohm load from DC upwards? I would like to test a 1.5 watt tcvr at 3.5MHz, will this dummy load be ok?
A lot of questions I know! Looking forward to getting on the air again with the 817 (it’s currently at Yaesu for a fettle!).
Thanks in advance for any help.