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Re: Tokyo Hy-Power HF Lin Amp HL100B

 

Same document at another link:



On Wed, May 15, 2024 at 5:20?PM Scott Wood <treii28@...> wrote:
Possible match?



On Wed, May 15, 2024 at 1:50?PM D Jones via <Djoneses=verizon.net@groups.io> wrote:
There seems to be an error in the HL100Bdx schematic that I am looking at.? RL2, the 5W relay, doesn't seem to do anything regardless of its state.? There appears to be a connection missing on the diagram.

I seems that the 5W position should simply bypass the attenuator.? Is there a similar attenuation circuit in the B version that cold be hardwired bypassed?

On Wed, May 15, 2024 at 12:35 PM, Peter Burnett via
<g4bll.peter=blueyonder.co.uk@groups.io> wrote:

Is anyone using this amp with an FT817/8? Is it possible to modify the drive input to obtain 100watts output for 5watts in. With the newer bdx version their is a switch to select 5 or 10 watts drive for 100watts out so I thought the b model might have the same circuitry but just no switch.?
Where can I obtain a copy of the manual and circuit diagram, pdf or paper.? I have only been able to find details on the bdx version.
Thanks for any comments/info ?


--
Peter Burnett G4BLL
Re: Tokyo Hy-Power HF Lin Amp HL100B

 

Possible match?



On Wed, May 15, 2024 at 1:50?PM D Jones via <Djoneses=verizon.net@groups.io> wrote:
There seems to be an error in the HL100Bdx schematic that I am looking at.? RL2, the 5W relay, doesn't seem to do anything regardless of its state.? There appears to be a connection missing on the diagram.

I seems that the 5W position should simply bypass the attenuator.? Is there a similar attenuation circuit in the B version that cold be hardwired bypassed?

On Wed, May 15, 2024 at 12:35 PM, Peter Burnett via
<g4bll.peter=blueyonder.co.uk@groups.io> wrote:

Is anyone using this amp with an FT817/8? Is it possible to modify the drive input to obtain 100watts output for 5watts in. With the newer bdx version their is a switch to select 5 or 10 watts drive for 100watts out so I thought the b model might have the same circuitry but just no switch.?
Where can I obtain a copy of the manual and circuit diagram, pdf or paper.? I have only been able to find details on the bdx version.
Thanks for any comments/info ?


--
Peter Burnett G4BLL
Re: Tokyo Hy-Power HF Lin Amp HL100B

D Jones
 

There seems to be an error in the HL100Bdx schematic that I am looking at.? RL2, the 5W relay, doesn't seem to do anything regardless of its state.? There appears to be a connection missing on the diagram.

I seems that the 5W position should simply bypass the attenuator.? Is there a similar attenuation circuit in the B version that cold be hardwired bypassed?

On Wed, May 15, 2024 at 12:35 PM, Peter Burnett via groups.io
<g4bll.peter@...> wrote:

Is anyone using this amp with an FT817/8? Is it possible to modify the drive input to obtain 100watts output for 5watts in. With the newer bdx version their is a switch to select 5 or 10 watts drive for 100watts out so I thought the b model might have the same circuitry but just no switch.?
Where can I obtain a copy of the manual and circuit diagram, pdf or paper. ?I have only been able to find details on the bdx version.
Thanks for any comments/info ?


--
Peter Burnett G4BLL
Tokyo Hy-Power HF Lin Amp HL100B

 

Is anyone using this amp with an FT817/8? Is it possible to modify the drive input to obtain 100watts output for 5watts in. With the newer bdx version their is a switch to select 5 or 10 watts drive for 100watts out so I thought the b model might have the same circuitry but just no switch.?
Where can I obtain a copy of the manual and circuit diagram, pdf or paper. ?I have only been able to find details on the bdx version.
Thanks for any comments/info ?


--
Peter Burnett G4BLL
Re: 60dbm Neptune Amplifier + or -

 

If you happen to be at the Hamvention this weekend, please stop by the HobbyPCB booth in building 1, booth 1912. We'll have the new 10th Anniversary Hardrock-50 and the 100W Hardrock-50+ on display and for sale.?

The RF circuit in the Neptune in surprisingly similar to the Hardrock-50's RF deck. The big difference between the amps is the control system; the HR50 is fully integrated with most QRP transceivers from Yeasu, ICOM, Xeigu, ELAD and others without relying on frequency detection. The Hardrock amps all have optional internal ATUs?

Hope to see you at the show.

73,
Jim WA2EUJ
Re: 60dbm Neptune Amplifier + or -

 

Thanks for the update and your use with the amplifier. I believe I will take the plunge. I live in a canyon and need more than QRP output to get of? the hills on certain bands.I currently? use a Mirage 2m amp for 2m ssb (2.5w in - 25w out)and would like to work 6m but with 5w my local contacts write and tell me they can barely hear me.

I have an IC 751a which is 100w but no 6m, VHF/UHF output. Did not want other? devices sitting on the table such as transverters and decided the 817 with two small amps (2m and a Neptune) would not take up too much space and still be portable. Ideally a 857 or 897 would be perfect but that would be an added expense.?

Here are some specs on the amplifier which details some of the components:

Neptune Amplifier – 50w Amplifier

This amplifier works very well, easily producing 50 watts with a drive around 2 watts. It requires no special interfacing only a cable connected between the amp and radio.

Details:
The HF +50MHz amplifier is custom designed, called NEPTUNE, with LPF (low pass filters), 4x RD16HHF1 transistor based, intended for field or mobile operations or as driver for higher power amplifiers. The amplifier produced from high quality ORIGINAL parts, such as Mitsubishi transistors and AMIDON cores. PA PCB mounted on metal heat-sink for good heat dissipation. PA has 2.5 dB flatness of frequency response and PA can operate 24x7x365 in any digital modes without extra cooling.

Nominal power supply – 13.5v
Nominal current is – 7A
Maximum current is – 10A
Idle current is – 0.8A
Input frequency 1.8, 3.5, 7, 10, 14, 18, 24, 28, 50 MHz
Input and output impedance is 50 Ohm
Input SWR – better than 1.5 for all bands
Nominal input power is 34dBm (2.5W)
Maximum input power is 37dBm (5W)
Nominal output power 47dBm (50W CW)
Maximum output power is 48.5dBm (65W CW)
Measured IMD3 performance is -32dB for nominal power
External PTT signal – GND active
Band switching – manual, by pressing a button
Case size 187x120x80 mm

– Cable included for connect Amplifier to Radio

Thanks to all who have made suggestions and recommendations.

73
Re: 60dbm Neptune Amplifier + or -

Scott McDonald
 

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I have one here. ?It arrived about 2 weeks after the order and works as advertised.

Power out on 12 meters was lower than the other bands with the same drive level, but meets the 3 dB flatness spec. ?It looks well-made.

But I’ve only used it with my IC705 so far. ?I will give the 817 a go soon.

You might consider an IC-706 mk2 G with the Power Port backpack that has a compartment for a 9 aH lithium iron phosphate battery. ?That’s what I replaced my 897 with when its microprocessor failed. I’ve found thst to be a close equivalent and maybe somewhat lighter.

Scott ka9p

On May 13, 2024, at 2:54?PM, AG3 - KI6DOZ <2gatos@...> wrote:

?That's the name of the company and the URL to the? online store.

I would just like to know if any ft 817 owners have used the 50w Neptune amp. eHam.net has a few positive reviews but I would like to hear from those on this forum. The? amp covers HF plus 6m which would be good for me and the cost is reasonable. I am still debating on getting a FT 897 to do what the ft 817 does with more power.

Re: 60dbm Neptune Amplifier + or -

 

Just make sure it has low pass filters or you'll need to add your own.

Joe N1KHB?




On Mon, May 13, 2024 at 3:54 PM, AG3 - KI6DOZ
<2gatos@...> wrote:
That's the name of the company and the URL to the? online store.

I would just like to know if any ft 817 owners have used the 50w Neptune amp. eHam.net has a few positive reviews but I would like to hear from those on this forum. The? amp covers HF plus 6m which would be good for me and the cost is reasonable. I am still debating on getting a FT 897 to do what the ft 817 does with more power.

Re: 60dbm Neptune Amplifier + or -

 

That's the name of the company and the URL to the? online store.

I would just like to know if any ft 817 owners have used the 50w Neptune amp. eHam.net has a few positive reviews but I would like to hear from those on this forum. The? amp covers HF plus 6m which would be good for me and the cost is reasonable. I am still debating on getting a FT 897 to do what the ft 817 does with more power.
Ham Radio

 

You just know that I had to send this (attachment)!?




Ham Radioabc.jpg

Re: 60dbm Neptune Amplifier + or -

 

Oh, OK. Seems like a strange name for a company! :-)

Zack W9SZ

On Mon, May 13, 2024 at 8:32?AM abigalcamino via <abigalcamino=gmail.com@groups.io> wrote:
is the name of the company, with the same url.

They offer? 50w and 100w auto switching qrp amps, hf including 6m.

The amp I am interested is a 50w Neptune.


Virus-free.
Re: How to remove SEL knob and VFO knob on FT-817

 

I didn't realise that they used a JIS standard hex screw. I managed to loosen then screw with the standard 1.5 and a little more pressure. I didn't have to use WD40 but that was going to be my back up plan.
Re: How to remove SEL knob and VFO knob on FT-817

 

Eric, thanks for the suggestions. Both worked for me and I've successfully got both the knobs off.
Re: 60dbm Neptune Amplifier + or -

 

60dbm.com is the name of the company, with the same url.

They offer? 50w and 100w auto switching qrp amps, hf including 6m.

The amp I am interested is a 50w Neptune.
Re: 60dbm Neptune Amplifier + or -

 

60 dBm? That's a kilowatt. Do you want a kilowatt amp with your FT-817?

Zack W9SZ

Virus-free.


On Mon, May 13, 2024 at 3:01?AM AG3 - KI6DOZ via <2gatos=dosgatos.com@groups.io> wrote:
I would like to know how well? the 60dbm Neptune Amplifier works with a FT 817ND for those of you that have and use one? My goal is to use it in the shack and in the field. I realize I can get a FT 857 or FT 897 to do the same thing but would like to keep costs down to purchase other essentials at present.

Thanks and 73

Re: How to remove SEL knob and VFO knob on FT-817

 

Hi Eddy,
If I remember correctly, the Yaesu and most major Japanese radios use the JIS standard hex screws ( slight difference in size and taper angle). I've used the standard 1.5 on my 817ND and it came loose very easily. Sounds like yours got torqued down a bit tighter. Use at your own peril, but a drop of WD40 applied with precision should do the trick (it worked for me on a stubborn case screw.)
60dbm Neptune Amplifier + or -

 

I would like to know how well? the 60dbm Neptune Amplifier works with a FT 817ND for those of you that have and use one? My goal is to use it in the shack and in the field. I realize I can get a FT 857 or FT 897 to do the same thing but would like to keep costs down to purchase other essentials at present.

Thanks and 73
Re: How to remove SEL knob and VFO knob on FT-817

 

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Hi Ed,

?

I can confirm that the 1.5 mm Allen key is the correct size. They are usually quite tight and will need a bit of force to loosen. (I just checked on mine.) Insert the short end of the key into the grub screw and use the longer end to loosen it.

?

Regarding the select knob, the shaft is a D shaped one and the knob just pulls off, It may leave the metal spring section on the shaft which will need to also be removed.

?

73….Eric VK2VE.

?

From: ft817@groups.io <ft817@groups.io> On Behalf Of eddy v
Sent: Monday, May 13, 2024 7:28 AM
To: ft817@groups.io
Subject: [ft817] How to remove SEL knob and VFO knob on FT-817

?

Hello,

I am replacing the SEL rotary encoder on the FT-817 and want to make sure I do it without breaking anything.

What size allen key (hex wrench) do I use to undo the VFO knob? I tried using a 1.5 mm allen key but I can't loosen the screw. I don't want to apply undue force and damage something by using the wrong tool.

How do I get the knob off the SEL encoder. Do I just pull it outwards while the unit is still fully assembled? Again, I tried pulling it off with some gentle force but it didn't budge. Since the encoder is being replaced anyway I'm OK with applying more force but I want to make sure that I'm approaching this the right way.

Thanks
Ed


Virus-free.
How to remove SEL knob and VFO knob on FT-817

 

Hello,

I am replacing the SEL rotary encoder on the FT-817 and want to make sure I do it without breaking anything.

What size allen key (hex wrench) do I use to undo the VFO knob? I tried using a 1.5 mm allen key but I can't loosen the screw. I don't want to apply undue force and damage something by using the wrong tool.

How do I get the knob off the SEL encoder. Do I just pull it outwards while the unit is still fully assembled? Again, I tried pulling it off with some gentle force but it didn't budge. Since the encoder is being replaced anyway I'm OK with applying more force but I want to make sure that I'm approaching this the right way.

Thanks
Ed
QRPworks at Hamvention

 

Hi All,

Hamvention is just around the corner and QRPworks is looking forward to being there again.

We'll be in the same inside booth as last year in building 2...booth 2804.

If you're going, stop by if you can and say hi.

(BTW, our custom FT-817/818 CAT cables to connect to our SideKar Decoder Edition are back in stock)

73,
Shel KF0UR & Steve KB3SII
QRPworks, LLC
1121 - 1140 of 115819